make-docfile cleanup for I/O, etc.
* lib-src/make-docfile.c (progname, generate_globals, num_globals) (num_globals_allocated, globals): Now static. (generate_globals, struct rcsoc_state, read_c_string_or_comment): (write_c_args, scan_c_stream, search_lisp_doc_at_eol, scan_lisp_file): Use bool for boolean. (verror): New function. (fatal, error): Use it. API is now like printf. All callers changed. (main): Remove err_count local that was always 0. (main, scan_c_stream, scan_lisp_file): Check for I/O error. (scan_file, scan_c_file, scan_c_stream, scan_lisp_file): Return void, not 0. (put_char, scan_keyword_or_put_char, scan_c_file): Use char for byte. (scan_keyword_or_put_char): Check for missing ( and unexpected EOF. (close_emacs_globals): Use ptrdiff_t for index, not int. (scan_c_file, scan_lisp_file): Exit with failure if file cannot be opened, rather than diagnosing but exiting with status 0. (search_lisp_doc_at_eol): Don't worry about ungetc of EOF; it's portable now.
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