Ripped from Fedora

--- man-1.5m2/src/apropos.sh
+++ man-1.5m2/src/apropos.sh
@@ -19,9 +19,9 @@
 
 # When man pages in your favorite locale look to grep like binary files
 # (and you use GNU grep) you may want to add the 'a' option to *grepopt1.
-aproposgrepopt1='i'
+aproposgrepopt1='ai'
 aproposgrepopt2=''
-whatisgrepopt1='iw'
+whatisgrepopt1='aiw'
 whatisgrepopt2='^'
 grepopt1=$%apropos_or_whatis%grepopt1
 grepopt2=$%apropos_or_whatis%grepopt2