warning_string    207 error.c            mesg = warning_string(0, fmt, args);
warning_string    221 error.c            mesg = warning_string(enc, fmt, args);
warning_string    236 error.c            mesg = warning_string(0, fmt, args);
warning_string    251 error.c            mesg = warning_string(enc, fmt, args);
warning_string   2262 error.c            mesg = warning_string(0, fmt, args);
warning_string   2282 error.c            mesg = warning_string(enc, fmt, args);