GitLab

	* opts.c (print_filtered_help): Skip undocumented switches.
	* opts.h (CL_UNDOCUMENTED): New.
	* opts.sh: Handle Undocumented.
	* toplev.c (documented_lang_options): Prevent its becoming empty.
f:
	* lang-options.h: Remove.
	* lang.opt: Document most options.
objc:
	* lang-options.h: Remove.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@69494 138bc75d-0d04-0410-961f-82ee72b054a4