52 PRINTF void fatal(const char *fmt, ...)  in fatal()  argument
58 	va_start(arglist, fmt);  in fatal()
59 	vfprintf(stderr, fmt, arglist);  in fatal()
65 PRINTF void warn(const char *fmt, ...)  in warn()  argument
71 	va_start(arglist, fmt);  in warn()
72 	vfprintf(stderr, fmt, arglist);  in warn()
76 PRINTF void merror(const char *fmt, ...)  in merror()  argument
82 	va_start(arglist, fmt);  in merror()
83 	vfprintf(stderr, fmt, arglist);  in merror()
2033 						      const char *fmt, ...)  in buf_printf()  argument
2039 	va_start(ap, fmt);  in buf_printf()
2040 	len = vsnprintf(tmp, SZ, fmt, ap);  in buf_printf()