gdb/

gdb/
	* auto-load.c (set_auto_load_safe_path): Reset AUTO_LOAD_SAFE_PATH
	back to DEFAULT_AUTO_LOAD_SAFE_PATH if it is being set to "".
	(show_auto_load_safe_path): Check any-directory by comparison with "/".
	(add_auto_load_safe_path): Change the error message.
	(_initialize_auto_load): Change the "safe-path" help text.
	* configure: Regenerate
	* configure.ac (--without-auto-load-safe-path): Set
	WITH_AUTO_LOAD_SAFE_PATH to /.

gdb/doc/
	* gdb.texinfo (Auto-loading safe path): Make 'directories'
	for 'set auto-load safe-path' optional.  Mention if it is omitted.
	Change disabling security protection condition to "/", twice.