[PATCH] update the documentation and --help message for -Wframe-larger-than=

["Seongbae Park (박성배, 朴成培)" <seongbae dot park at gmail dot com>]

Hi,

Andrew noticed that --help -v message for -Wframe-larger-than= looked weird.
The following patch fixes the problem, and moves the long-ish comment
to the appropriate place in invoke.texi.
Tested by looking at --help -v output and info -f gcc.info.
OK for mainline ?

Seongbae


gcc/ChangeLog:

2008-05-08  Seongbae Park  <seongbae.park@gmail.com>
        * common.opt (Wframe-larger-than=): Shorten the help message
to one line.
        * doc/invoke.texi (Wframe-larger-than=): Add more description.

Index: doc/invoke.texi
===================================================================
--- doc/invoke.texi	(revision 134832)
+++ doc/invoke.texi	(working copy)
@@ -3552,7 +3552,14 @@ Warn whenever an object of larger than @
 
 @item -Wframe-larger-than=@var{len}
 @opindex Wframe-larger-than
-Warn whenever the size of a function frame is larger than @var{len} bytes.
+Warn if the size of a function frame is larger than @var{len} bytes.
+The computation done to determine the stack frame size is approximate
+and not conservative.
+The actual requirements may be somewhat greater than @var{len}
+even if you do not get a warning.  In addition, any space allocated
+via @code{alloca}, variable-length arrays, or related constructs
+is not included by the compiler when determining
+whether or not to issue a warning.
 
 @item -Wunsafe-loop-optimizations
 @opindex Wunsafe-loop-optimizations
Index: common.opt
===================================================================
--- common.opt	(revision 134829)
+++ common.opt	(working copy)
@@ -112,14 +112,7 @@ Exit on the first error occurred
 
 Wframe-larger-than=
 Common RejectNegative Joined UInteger
--Wframe-larger-than=@var{len} Warn whenever a function's stack frame requires
-more than @var{len} bytes.  The computation done to determine
-the stack frame size is approximate and not conservative.
-The actual requirements may be somewhat greater than @var{len}
-even if you do not get a warning.  In addition, any space allocated
-via @code{alloca}, variable-length arrays, or related constructs
-is not included by the compiler when determining
-whether or not to issue a warning.
+-Wframe-larger-than=<number> Warn if a function's stack frame requires more than <number> bytes
 
 Winline
 Common Var(warn_inline) Warning