Unify quoting in metadata.xml files for machine processing

Force unified quoting in all metadata.xml files since lxml does not
preserve original use of single and double quotes. Ensuring unified
quoting before the process allows distinguishing the GLEP 67-related
metadata.xml changes from unrelated quoting changes.

22 files changed, 98 insertions, 103 deletions

diff --git a/dev-db/apgdiff/metadata.xml b/dev-db/apgdiff/metadata.xml
index 75a69408566f..bd7fbc012add 100644
--- a/dev-db/apgdiff/metadata.xml
+++ b/dev-db/apgdiff/metadata.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='UTF-8'?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
   <herd>java</herd>
diff --git a/dev-db/barman/metadata.xml b/dev-db/barman/metadata.xml
index 0d7a928e2531..bc03dd8c218c 100644
--- a/dev-db/barman/metadata.xml
+++ b/dev-db/barman/metadata.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='UTF-8'?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
 	<maintainer>
diff --git a/dev-db/datadraw/metadata.xml b/dev-db/datadraw/metadata.xml
index d2893a9317a8..8adb8b41992f 100644
--- a/dev-db/datadraw/metadata.xml
+++ b/dev-db/datadraw/metadata.xml
@@ -13,4 +13,3 @@
 DataDraw is a feature rich database generator for high performance C applications. DataDraw gives your C application a high performance object-oriented framework at speeds that beat hand coded C.
 </longdescription>
 </pkgmetadata>
-
diff --git a/dev-db/db-je/metadata.xml b/dev-db/db-je/metadata.xml
index 59b15e8a41aa..00f569801896 100644
--- a/dev-db/db-je/metadata.xml
+++ b/dev-db/db-je/metadata.xml
@@ -7,4 +7,3 @@
 	</maintainer>
 <herd>java</herd>
 </pkgmetadata>
-
diff --git a/dev-db/hyperdex/metadata.xml b/dev-db/hyperdex/metadata.xml
index f90563e3cfde..24cbb90cf0c4 100644
--- a/dev-db/hyperdex/metadata.xml
+++ b/dev-db/hyperdex/metadata.xml
@@ -6,4 +6,3 @@
 		<name>Patrick Lauer</name>
 	</maintainer>
 </pkgmetadata>
-
diff --git a/dev-db/m17n-contrib/metadata.xml b/dev-db/m17n-contrib/metadata.xml
index 2896f95fba7b..04dbcb713d95 100644
--- a/dev-db/m17n-contrib/metadata.xml
+++ b/dev-db/m17n-contrib/metadata.xml
@@ -6,4 +6,3 @@
 The m17n-contrib is a collection of contributed works to be used with the m17n library.
 </longdescription>
 </pkgmetadata>
-
diff --git a/dev-db/mariadb-galera/metadata.xml b/dev-db/mariadb-galera/metadata.xml
index ecc7af571b31..fbb57c9b6695 100644
--- a/dev-db/mariadb-galera/metadata.xml
+++ b/dev-db/mariadb-galera/metadata.xml
@@ -12,23 +12,23 @@ dev-db/mysql
 dev-db/mariadb
 -->
 <use>
-  <flag name='client-libs'>Build the libmysqlclient libraries</flag>
-  <flag name='embedded'>Build embedded server (libmysqld)</flag>
-  <flag name='extraengine'>Add support for alternative storage engines (Archive, CSV, Blackhole, Federated(X), Partition)</flag>
+  <flag name="client-libs">Build the libmysqlclient libraries</flag>
+  <flag name="embedded">Build embedded server (libmysqld)</flag>
+  <flag name="extraengine">Add support for alternative storage engines (Archive, CSV, Blackhole, Federated(X), Partition)</flag>
   <flag name="jemalloc">Use <pkg>dev-libs/jemalloc</pkg> for allocations.</flag>
-  <flag name='latin1'>Use LATIN1 encoding instead of UTF8</flag>
-  <flag name='libressl'>Enable SSL connections and crypto functions using <pkg>dev-libs/libressl</pkg></flag>
-  <flag name='oqgraph'>Add support for the Open Query GRAPH engine</flag>
-  <flag name='openssl'>Enable SSL connections and crypto functions using <pkg>dev-libs/openssl</pkg></flag>
-  <flag name='profiling'>Add support for statement profiling (requires USE=community).</flag>
-  <flag name='server'>Build the server program</flag>
-  <flag name='sst-rsync'>Add tools needed to support the rsync SST method</flag>
-  <flag name='sst-xtrabackup'>Add tools needed to support the xtrabackup and xtrabackup-v2 SST methods</flag>
+  <flag name="latin1">Use LATIN1 encoding instead of UTF8</flag>
+  <flag name="libressl">Enable SSL connections and crypto functions using <pkg>dev-libs/libressl</pkg></flag>
+  <flag name="oqgraph">Add support for the Open Query GRAPH engine</flag>
+  <flag name="openssl">Enable SSL connections and crypto functions using <pkg>dev-libs/openssl</pkg></flag>
+  <flag name="profiling">Add support for statement profiling (requires USE=community).</flag>
+  <flag name="server">Build the server program</flag>
+  <flag name="sst-rsync">Add tools needed to support the rsync SST method</flag>
+  <flag name="sst-xtrabackup">Add tools needed to support the xtrabackup and xtrabackup-v2 SST methods</flag>
   <flag name="systemtap">Build support for profiling and tracing using <pkg>dev-util/systemtap</pkg></flag>
-  <flag name='sphinx'>Add suport for the sphinx full-text search engine</flag>
-  <flag name='test'>Install upstream testsuites for end use.</flag>
-  <flag name='tokudb'>Add support for TokuDB storage engine</flag>
-  <flag name='tools'>Build the command line tools (mysql, mysqldump, mysqladmin, etc)</flag>
-  <flag name='yassl'>Enable SSL connections and crypto functions using the bundled yaSSL</flag>
+  <flag name="sphinx">Add suport for the sphinx full-text search engine</flag>
+  <flag name="test">Install upstream testsuites for end use.</flag>
+  <flag name="tokudb">Add support for TokuDB storage engine</flag>
+  <flag name="tools">Build the command line tools (mysql, mysqldump, mysqladmin, etc)</flag>
+  <flag name="yassl">Enable SSL connections and crypto functions using the bundled yaSSL</flag>
 </use>
 </pkgmetadata>
diff --git a/dev-db/mariadb/metadata.xml b/dev-db/mariadb/metadata.xml
index 1ff8c0930181..f7f488f6a5e0 100644
--- a/dev-db/mariadb/metadata.xml
+++ b/dev-db/mariadb/metadata.xml
@@ -12,33 +12,33 @@ dev-db/mysql
 dev-db/mariadb
 -->
 <use>
-  <flag name='client-libs'>Build the libmysqlclient libraries</flag>
-  <flag name='cluster'>Add support for NDB clustering (deprecated)</flag>
-  <flag name='community'>Enables the community features from upstream.</flag>
-  <flag name='embedded'>Build embedded server (libmysqld)</flag>
-  <flag name='extraengine'>Add support for alternative storage engines (Archive, CSV, Blackhole, Federated(X), Partition)</flag>
-  <flag name='galera'>Enables galera replication</flag>
-  <flag name='innodb-lz4'>Enables lz4 compression methods for InnoDB/XtraDB</flag>
-  <flag name='innodb-lzo'>Enables lzo compression methods for InnoDB/XtraDB</flag>
-  <flag name='innodb-snappy'>Enables snappy compression methods for InnoDB/XtraDB using <pkg>app-arch/snappy</pkg></flag>
+  <flag name="client-libs">Build the libmysqlclient libraries</flag>
+  <flag name="cluster">Add support for NDB clustering (deprecated)</flag>
+  <flag name="community">Enables the community features from upstream.</flag>
+  <flag name="embedded">Build embedded server (libmysqld)</flag>
+  <flag name="extraengine">Add support for alternative storage engines (Archive, CSV, Blackhole, Federated(X), Partition)</flag>
+  <flag name="galera">Enables galera replication</flag>
+  <flag name="innodb-lz4">Enables lz4 compression methods for InnoDB/XtraDB</flag>
+  <flag name="innodb-lzo">Enables lzo compression methods for InnoDB/XtraDB</flag>
+  <flag name="innodb-snappy">Enables snappy compression methods for InnoDB/XtraDB using <pkg>app-arch/snappy</pkg></flag>
   <flag name="jemalloc">Use <pkg>dev-libs/jemalloc</pkg> for allocations.</flag>
-  <flag name='latin1'>Use LATIN1 encoding instead of UTF8</flag>
-  <flag name='libressl'>Enable SSL connections and crypto functions using <pkg>dev-libs/libressl</pkg></flag>
-  <flag name='max-idx-128'>Raise the max index per table limit from 64 to 128</flag>
-  <flag name='minimal'>Install client programs only, no server</flag>
-  <flag name='mroonga'>Add support for the Mroonga engine for interfacing with the Groonga text search</flag>
-  <flag name='openssl'>Enable SSL connections and crypto functions using <pkg>dev-libs/openssl</pkg></flag>
-  <flag name='oqgraph'>Add support for the Open Query GRAPH engine</flag>
-  <flag name='pam'>Enable the optional PAM authentication plugin for the server</flag>
-  <flag name='profiling'>Add support for statement profiling (requires USE=community).</flag>
-  <flag name='server'>Build the server program</flag>
-  <flag name='sphinx'>Add suport for the sphinx full-text search engine</flag>
-  <flag name='sst-rsync'>Add tools needed to support the rsync SST method</flag>
-  <flag name='sst-xtrabackup'>Add tools needed to support the xtrabackup and xtrabackup-v2 SST methods</flag>
+  <flag name="latin1">Use LATIN1 encoding instead of UTF8</flag>
+  <flag name="libressl">Enable SSL connections and crypto functions using <pkg>dev-libs/libressl</pkg></flag>
+  <flag name="max-idx-128">Raise the max index per table limit from 64 to 128</flag>
+  <flag name="minimal">Install client programs only, no server</flag>
+  <flag name="mroonga">Add support for the Mroonga engine for interfacing with the Groonga text search</flag>
+  <flag name="openssl">Enable SSL connections and crypto functions using <pkg>dev-libs/openssl</pkg></flag>
+  <flag name="oqgraph">Add support for the Open Query GRAPH engine</flag>
+  <flag name="pam">Enable the optional PAM authentication plugin for the server</flag>
+  <flag name="profiling">Add support for statement profiling (requires USE=community).</flag>
+  <flag name="server">Build the server program</flag>
+  <flag name="sphinx">Add suport for the sphinx full-text search engine</flag>
+  <flag name="sst-rsync">Add tools needed to support the rsync SST method</flag>
+  <flag name="sst-xtrabackup">Add tools needed to support the xtrabackup and xtrabackup-v2 SST methods</flag>
   <flag name="systemtap">Build support for profiling and tracing using <pkg>dev-util/systemtap</pkg></flag>
-  <flag name='tools'>Build the command line tools (mysql, mysqldump, mysqladmin, etc)</flag>
-  <flag name='test'>Install upstream testsuites for end use.</flag>
-  <flag name='tokudb'>Add support for TokuDB storage engine</flag>
-  <flag name='yassl'>Enable SSL connections and crypto functions using the bundled yaSSL</flag>
+  <flag name="tools">Build the command line tools (mysql, mysqldump, mysqladmin, etc)</flag>
+  <flag name="test">Install upstream testsuites for end use.</flag>
+  <flag name="tokudb">Add support for TokuDB storage engine</flag>
+  <flag name="yassl">Enable SSL connections and crypto functions using the bundled yaSSL</flag>
 </use>
 </pkgmetadata>
diff --git a/dev-db/mycli/metadata.xml b/dev-db/mycli/metadata.xml
index e975a307a7db..346a254c39c0 100644
--- a/dev-db/mycli/metadata.xml
+++ b/dev-db/mycli/metadata.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='UTF-8'?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
 	<use>
diff --git a/dev-db/mysql-cluster/metadata.xml b/dev-db/mysql-cluster/metadata.xml
index 3e4bee60e527..dda993e244ee 100644
--- a/dev-db/mysql-cluster/metadata.xml
+++ b/dev-db/mysql-cluster/metadata.xml
@@ -7,19 +7,19 @@
     <description>Libressl issues. Only assign if it's a direct Libressl issue. Do not directly assign for anything else.</description>
   </maintainer>
 <use>
-  <flag name='cluster'>Add support for NDB clustering</flag>
-  <flag name='community'>Enables the community features from upstream.</flag>
-  <flag name='embedded'>Build embedded server (libmysqld)</flag>
-  <flag name='extraengine'>Add support for alternative storage engines (Archive, CSV, Blackhole, Federated(X), Partition)</flag>
+  <flag name="cluster">Add support for NDB clustering</flag>
+  <flag name="community">Enables the community features from upstream.</flag>
+  <flag name="embedded">Build embedded server (libmysqld)</flag>
+  <flag name="extraengine">Add support for alternative storage engines (Archive, CSV, Blackhole, Federated(X), Partition)</flag>
   <flag name="jemalloc">Use <pkg>dev-libs/jemalloc</pkg> for allocations.</flag>
-  <flag name='latin1'>Use LATIN1 encoding instead of UTF8</flag>
-  <flag name='libressl'>Enable SSL connections and crypto functions using <pkg>dev-libs/libressl</pkg></flag>
-  <flag name='openssl'>Enable SSL connections and crypto functions using <pkg>dev-libs/openssl</pkg></flag>
-  <flag name='max-idx-128'>Raise the max index per table limit from 64 to 128</flag>
-  <flag name='minimal'>Install client programs only, no server</flag>
-  <flag name='profiling'>Add support for statement profiling (requires USE=community).</flag>
+  <flag name="latin1">Use LATIN1 encoding instead of UTF8</flag>
+  <flag name="libressl">Enable SSL connections and crypto functions using <pkg>dev-libs/libressl</pkg></flag>
+  <flag name="openssl">Enable SSL connections and crypto functions using <pkg>dev-libs/openssl</pkg></flag>
+  <flag name="max-idx-128">Raise the max index per table limit from 64 to 128</flag>
+  <flag name="minimal">Install client programs only, no server</flag>
+  <flag name="profiling">Add support for statement profiling (requires USE=community).</flag>
   <flag name="systemtap">Build support for profiling and tracing using <pkg>dev-util/systemtap</pkg></flag>
-  <flag name='test'>Install upstream testsuites for end use.</flag>
-  <flag name='yassl'>Enable SSL connections and crypto functions using the bundled yaSSL</flag>
+  <flag name="test">Install upstream testsuites for end use.</flag>
+  <flag name="yassl">Enable SSL connections and crypto functions using the bundled yaSSL</flag>
 </use>
 </pkgmetadata>
diff --git a/dev-db/mysql-connector-c++/metadata.xml b/dev-db/mysql-connector-c++/metadata.xml
index 5b748c437cb0..8e07201afa17 100644
--- a/dev-db/mysql-connector-c++/metadata.xml
+++ b/dev-db/mysql-connector-c++/metadata.xml
@@ -4,7 +4,7 @@
 <herd>mysql</herd>
 <herd>proxy-maintainers</herd>
 <use>
-<flag name='gcov'>Build coverage support</flag>
+<flag name="gcov">Build coverage support</flag>
 </use>
 	<maintainer>
 		<email>idella4@gentoo.org</email>
diff --git a/dev-db/mysql-udf-ipv6/metadata.xml b/dev-db/mysql-udf-ipv6/metadata.xml
index 65690818aa28..81dc07a7a58f 100644
--- a/dev-db/mysql-udf-ipv6/metadata.xml
+++ b/dev-db/mysql-udf-ipv6/metadata.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='UTF-8'?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
 	<maintainer>
diff --git a/dev-db/mysql/metadata.xml b/dev-db/mysql/metadata.xml
index c5f04ffb4438..d8a250945304 100644
--- a/dev-db/mysql/metadata.xml
+++ b/dev-db/mysql/metadata.xml
@@ -12,22 +12,22 @@ dev-db/mysql
 dev-db/mariadb
 -->
 <use>
-  <flag name='client-libs'>Build the libmysqlclient libraries</flag>
-  <flag name='cluster'>Add support for NDB clustering (deprecated)</flag>
-  <flag name='community'>Enables the community features from upstream.</flag>
-  <flag name='embedded'>Build embedded server (libmysqld)</flag>
-  <flag name='extraengine'>Add support for alternative storage engines (Archive, CSV, Blackhole, Federated(X), Partition)</flag>
+  <flag name="client-libs">Build the libmysqlclient libraries</flag>
+  <flag name="cluster">Add support for NDB clustering (deprecated)</flag>
+  <flag name="community">Enables the community features from upstream.</flag>
+  <flag name="embedded">Build embedded server (libmysqld)</flag>
+  <flag name="extraengine">Add support for alternative storage engines (Archive, CSV, Blackhole, Federated(X), Partition)</flag>
   <flag name="jemalloc">Use <pkg>dev-libs/jemalloc</pkg> for allocations.</flag>
-  <flag name='latin1'>Use LATIN1 encoding instead of UTF8</flag>
-  <flag name='libressl'>Enable SSL connections and crypto functions using <pkg>dev-libs/libressl</pkg></flag>
-  <flag name='openssl'>Enable SSL connections and crypto functions using <pkg>dev-libs/openssl</pkg></flag>
-  <flag name='max-idx-128'>Raise the max index per table limit from 64 to 128</flag>
-  <flag name='minimal'>Install client programs only, no server</flag>
-  <flag name='profiling'>Add support for statement profiling (requires USE=community).</flag>
-  <flag name='server'>Build the server program</flag>
+  <flag name="latin1">Use LATIN1 encoding instead of UTF8</flag>
+  <flag name="libressl">Enable SSL connections and crypto functions using <pkg>dev-libs/libressl</pkg></flag>
+  <flag name="openssl">Enable SSL connections and crypto functions using <pkg>dev-libs/openssl</pkg></flag>
+  <flag name="max-idx-128">Raise the max index per table limit from 64 to 128</flag>
+  <flag name="minimal">Install client programs only, no server</flag>
+  <flag name="profiling">Add support for statement profiling (requires USE=community).</flag>
+  <flag name="server">Build the server program</flag>
   <flag name="systemtap">Build support for profiling and tracing using <pkg>dev-util/systemtap</pkg></flag>
-  <flag name='test'>Install upstream testsuites for end use.</flag>
-  <flag name='tools'>Build the command line tools (mysql, mysqldump, mysqladmin, etc)</flag>
-  <flag name='yassl'>Enable SSL connections and crypto functions using the bundled yaSSL</flag>
+  <flag name="test">Install upstream testsuites for end use.</flag>
+  <flag name="tools">Build the command line tools (mysql, mysqldump, mysqladmin, etc)</flag>
+  <flag name="yassl">Enable SSL connections and crypto functions using the bundled yaSSL</flag>
 </use>
 </pkgmetadata>
diff --git a/dev-db/percona-server/metadata.xml b/dev-db/percona-server/metadata.xml
index 5bea6cc9ec39..428ebf0e09b8 100644
--- a/dev-db/percona-server/metadata.xml
+++ b/dev-db/percona-server/metadata.xml
@@ -7,20 +7,20 @@
     <description>Libressl issues. Only assign if it's a direct Libressl issue. Do not directly assign for anything else.</description>
   </maintainer>
 <use>
-  <flag name='client-libs'>Build the libmysqlclient libraries</flag>
-  <flag name='embedded'>Build embedded server (libmysqld)</flag>
-  <flag name='extraengine'>Add support for alternative storage engines (Archive, CSV, Blackhole, Federated(X), Partition)</flag>
+  <flag name="client-libs">Build the libmysqlclient libraries</flag>
+  <flag name="embedded">Build embedded server (libmysqld)</flag>
+  <flag name="extraengine">Add support for alternative storage engines (Archive, CSV, Blackhole, Federated(X), Partition)</flag>
   <flag name="jemalloc">Use <pkg>dev-libs/jemalloc</pkg> for allocations.</flag>
-  <flag name='latin1'>Use LATIN1 encoding instead of UTF8</flag>
-  <flag name='libressl'>Enable SSL connections and crypto functions using <pkg>dev-libs/libressl</pkg></flag>
-  <flag name='openssl'>Enable SSL connections and crypto functions using <pkg>dev-libs/openssl</pkg></flag>
-  <flag name='profiling'>Add support for statement profiling (requires USE=community).</flag>
-  <flag name='server'>Build the server program</flag>
+  <flag name="latin1">Use LATIN1 encoding instead of UTF8</flag>
+  <flag name="libressl">Enable SSL connections and crypto functions using <pkg>dev-libs/libressl</pkg></flag>
+  <flag name="openssl">Enable SSL connections and crypto functions using <pkg>dev-libs/openssl</pkg></flag>
+  <flag name="profiling">Add support for statement profiling (requires USE=community).</flag>
+  <flag name="server">Build the server program</flag>
   <flag name="systemtap">Build support for profiling and tracing using <pkg>dev-util/systemtap</pkg></flag>
-  <flag name='test'>Install upstream testsuites for end use.</flag>
-  <flag name='tokudb'>Add support for TokuDB storage engine</flag>
-  <flag name='tokudb-backup-plugin'>Builds the TokuDB backup plugin</flag>
-  <flag name='tools'>Build the command line tools (mysql, mysqldump, mysqladmin, etc)</flag>
-  <flag name='yassl'>Enable SSL connections and crypto functions using the bundled yaSSL</flag>
+  <flag name="test">Install upstream testsuites for end use.</flag>
+  <flag name="tokudb">Add support for TokuDB storage engine</flag>
+  <flag name="tokudb-backup-plugin">Builds the TokuDB backup plugin</flag>
+  <flag name="tools">Build the command line tools (mysql, mysqldump, mysqladmin, etc)</flag>
+  <flag name="yassl">Enable SSL connections and crypto functions using the bundled yaSSL</flag>
 </use>
 </pkgmetadata>
diff --git a/dev-db/pg_top/metadata.xml b/dev-db/pg_top/metadata.xml
index fd5d8d805d91..da90b399c13e 100644
--- a/dev-db/pg_top/metadata.xml
+++ b/dev-db/pg_top/metadata.xml
@@ -7,4 +7,3 @@
 		top, pg_top allows you to monitor PostgreSQL processes.
 	</longdescription>
 </pkgmetadata>
-
diff --git a/dev-db/pgadmin3/metadata.xml b/dev-db/pgadmin3/metadata.xml
index d74b804b6ad0..2de04e68c028 100644
--- a/dev-db/pgadmin3/metadata.xml
+++ b/dev-db/pgadmin3/metadata.xml
@@ -3,6 +3,6 @@
 <pkgmetadata>
 	<herd>postgresql</herd>
 <use>
-	<flag name='databasedesigner'>Enable the Database Designer component</flag>
+	<flag name="databasedesigner">Enable the Database Designer component</flag>
 </use>
 </pkgmetadata>
diff --git a/dev-db/pgpool2/metadata.xml b/dev-db/pgpool2/metadata.xml
index d724a3dd009d..9cfd4b91cdf6 100644
--- a/dev-db/pgpool2/metadata.xml
+++ b/dev-db/pgpool2/metadata.xml
@@ -3,6 +3,6 @@
 <pkgmetadata>
     <herd>postgresql</herd>
     <use>
-        <flag name='memcached'>Use memcached for query caching.</flag>
+        <flag name="memcached">Use memcached for query caching.</flag>
     </use>
 </pkgmetadata>
diff --git a/dev-db/phpmyadmin/metadata.xml b/dev-db/phpmyadmin/metadata.xml
index f618e25f95ef..7bb697a7b342 100644
--- a/dev-db/phpmyadmin/metadata.xml
+++ b/dev-db/phpmyadmin/metadata.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='UTF-8'?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
 	<herd>web-apps</herd>
diff --git a/dev-db/phppgadmin/metadata.xml b/dev-db/phppgadmin/metadata.xml
index 096a77cd55aa..4afb70d53bc4 100644
--- a/dev-db/phppgadmin/metadata.xml
+++ b/dev-db/phppgadmin/metadata.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='UTF-8'?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
 	<herd>postgresql</herd>
diff --git a/dev-db/postgresql/metadata.xml b/dev-db/postgresql/metadata.xml
index 475fe3613c08..8fb6d0f32735 100644
--- a/dev-db/postgresql/metadata.xml
+++ b/dev-db/postgresql/metadata.xml
@@ -3,14 +3,14 @@
 <pkgmetadata>
     <herd>postgresql</herd>
     <use>
-        <flag name='pg_legacytimestamp'>
+        <flag name="pg_legacytimestamp">
             Use double precision floating-point numbers instead of 64-bit
             integers for timestamp storage.
         </flag>
-        <flag name='server'>
+        <flag name="server">
             Disable to build and install the clients and libraries only.
         </flag>
-        <flag name='uuid'>
+        <flag name="uuid">
             Enable server side UUID generation (via
             <pkg>dev-libs/ossp-uuid</pkg>).
         </flag>
diff --git a/dev-db/psqlodbc/metadata.xml b/dev-db/psqlodbc/metadata.xml
index 9275f1aa9e94..c3c59cf97d21 100644
--- a/dev-db/psqlodbc/metadata.xml
+++ b/dev-db/psqlodbc/metadata.xml
@@ -3,6 +3,6 @@
 <pkgmetadata>
 <herd>postgresql</herd>
 <use>
-<flag name='iodbc'>Use dev-db/libiodbc. Disable to use dev-db/unixODBC.</flag>
+<flag name="iodbc">Use dev-db/libiodbc. Disable to use dev-db/unixODBC.</flag>
 </use>
 </pkgmetadata>
diff --git a/dev-db/spatialite/metadata.xml b/dev-db/spatialite/metadata.xml
index dd2d30615678..adbecd756dc2 100644
--- a/dev-db/spatialite/metadata.xml
+++ b/dev-db/spatialite/metadata.xml
@@ -3,8 +3,8 @@
 <pkgmetadata>
 	<herd>sci-geosciences</herd>
 <use>
-	<flag name='geos'>Add the <pkg>sci-libs/geos</pkg> library for exact topological tests</flag>
-	<flag name='proj'>Add the <pkg>sci-libs/proj</pkg> library for reprojection features</flag>
-	<flag name='xls'>Add the <pkg>dev-libs/freexl</pkg> library for xls import support</flag>
+	<flag name="geos">Add the <pkg>sci-libs/geos</pkg> library for exact topological tests</flag>
+	<flag name="proj">Add the <pkg>sci-libs/proj</pkg> library for reprojection features</flag>
+	<flag name="xls">Add the <pkg>dev-libs/freexl</pkg> library for xls import support</flag>
 </use>
 </pkgmetadata>