192 illegal_char(char *errbuf, int c)  in illegal_char()  argument
194     if (errbuf == NULL)  in illegal_char()
196     sprintf((char *)errbuf, _("E539: Illegal character <%s>"),  in illegal_char()
198     return errbuf;  in illegal_char()
581     static char errbuf[80];  in check_stl_option()  local
622 	    return illegal_char(errbuf, *s);  in check_stl_option()
651     char	*errbuf,		// buffer for errors, or NULL  in did_set_string_option()  argument
1299 		    errmsg = illegal_char(errbuf, *s);  in did_set_string_option()
1377 		errmsg = illegal_char(errbuf, *s);  in did_set_string_option()
1402 		    if (errbuf != NULL)  in did_set_string_option()
1404 			sprintf(errbuf, _("E526: Missing number after <%s>"),  in did_set_string_option()
1406 			errmsg = errbuf;  in did_set_string_option()
1417 		if (errbuf != NULL)  in did_set_string_option()
1853 		errmsg = illegal_char(errbuf, *s);  in did_set_string_option()
1870 		    if (errbuf != NULL)  in did_set_string_option()
1872 			sprintf((char *)errbuf,  in did_set_string_option()
1875 			errmsg = errbuf;  in did_set_string_option()
2365 		    errmsg = illegal_char(errbuf, *s);  in did_set_string_option()