[PATCH, doc] Improve state of check_warning_flags.sh warnings.

[Ralf Wildenhues <Ralf dot Wildenhues at gmx dot de>]

This fixes most warnings output from the check_warning_flags.sh script
for current trunk.

OK for 4.4?  This is a doc+contrib only patch.
Tested 'make info html pdf' of course.

Thanks,
Ralf

contrib/ChangeLog:
2009-03-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* check_warning_flags.sh: Update flag exceptions.

gcc/ChangeLog:
2009-03-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* doc/invoke.texi (Warning Options): -Wsync-nand is C/C++ only.
	-Wno-pedantic-ms-format is for MinGW targets only.

diff --git a/contrib/check_warning_flags.sh b/contrib/check_warning_flags.sh
index fcd0f37..adbc0d6 100755
--- a/contrib/check_warning_flags.sh
+++ b/contrib/check_warning_flags.sh
@@ -39,9 +39,12 @@ stderr=check_warning_flags_stderr$$
 
 remove_problematic_flags='
   /-Wlarger-than-/d
+  /-Wframe-larger-than/d
+  /-Wdisallowed-function-list/d
   /-W[alp],/d
   /-Werror/d
   /-Wpadded/d
+  /pedantic-ms-format/d
   /=/d'
 
 # Ensure that indexed warnings are accepted.
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 6d36794..99790b2 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -3129,7 +3129,7 @@ and lacks a @code{case} for one or more of the named codes of that
 enumeration.  @code{case} labels outside the enumeration range also
 provoke warnings when this option is used.
 
-@item -Wsync-nand
+@item -Wsync-nand @r{(C and C++ only)}
 @opindex Wsync-nand
 @opindex Wno-sync-nand
 Warn when @code{__sync_fetch_and_nand} and @code{__sync_nand_and_fetch}
@@ -3583,7 +3583,7 @@ assume anything on the bounds of the loop indices.  With
 @option{-funsafe-loop-optimizations} warn if the compiler made
 such assumptions.
 
-@item -Wno-pedantic-ms-format
+@item -Wno-pedantic-ms-format @r{(MinGW targets only)}
 @opindex Wno-pedantic-ms-format
 @opindex Wpedantic-ms-format
 Disables the warnings about non-ISO @code{printf} / @code{scanf} format