gcc.c (display_help): Document --version.

gcc/
	* gcc.c (display_help): Document --version.

From-SVN: r144525

gcc/ChangeLog

 2009-03-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 
+	* gcc.c (display_help): Document --version.
+
 	* gcc.c (main): If print_help_list and verbose_flag, ensure
 	driver output comes before subprocess output.
 

gcc/gcc.c

@@ -3232,6 +3232,7 @@ display_help (void)
   fputs (_("                           Display specific types of command line options\n"), stdout);
   if (! verbose_flag)
     fputs (_("  (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
+  fputs (_("  --version                Display compiler version information\n"), stdout);
   fputs (_("  -dumpspecs               Display all of the built in spec strings\n"), stdout);
   fputs (_("  -dumpversion             Display the version of the compiler\n"), stdout);
   fputs (_("  -dumpmachine             Display the compiler's target processor\n"), stdout);