* collect2.c (main, write_c_file_stat), gcc.c (translate_options,

* collect2.c (main, write_c_file_stat), gcc.c (translate_options,

	process_command, main), gcov.c (open_files, output_data), tlink.c
	(frob_extension, scan_linker_output), toplev.c
	(file_name_nondirectory): Use strchr () and strrchr () instead of
	index () and rindex ().

cp:
	* dump.c (dequeue_and_dump), lex.c (interface_strcmp), method.c
	(build_overload_value), repo.c (open_repo_file), xref.c
	(open_xref_file): Use strchr () and strrchr () instead of index ()
	and rindex ().

f:
	* com.c (open_include_file, ffecom_open_include_): Use strchr ()
	and strrchr () instead of index () and rindex ().

From-SVN: r37206