argv.c: Fix comments.

argv.c: Fix comments.

	* argv.c: Fix comments.
	* calloc.c: Don't unnecessarily include "libiberty.h".
	(bzero): Add prototype.
	* floatformat.c: Include "ansidecl.h", rely on ANSI_PROTOTYPES.
	* getcwd.c (getcwd): Use standard definition to avoid conflicts
	with system headers.
	* hashtab.c (htab_traverse): Delete unused variables.
	* rename.c: Include "ansidecl.h".
	(rename): Use standard definition to avoid conflicts with system
	headers.
	* strsignal.c: Rely on ANSI_PROTOTYPES.
	* strstr.c: Check GNUC >= 2, not GNUC == 2.
	* vfprintf.c: Include "ansidecl.h", rely on ANSI_PROTOTYPES.
	* vprintf.c: Include "ansidecl.h" earlier, rely on
	ANSI_PROTOTYPES.
	* vsprintf.c: Include "ansidecl.h" earlier, rely on
	ANSI_PROTOTYPES and possibly include <stdarg.h>.

	* Makefile.in: Regenerate dependencies.

From-SVN: r65659