57 PRINTF void fatal(const char *fmt, ...)  in fatal()  argument
63 	va_start(arglist, fmt);  in fatal()
64 	vfprintf(stderr, fmt, arglist);  in fatal()
70 PRINTF void warn(const char *fmt, ...)  in warn()  argument
76 	va_start(arglist, fmt);  in warn()
77 	vfprintf(stderr, fmt, arglist);  in warn()
81 PRINTF void merror(const char *fmt, ...)  in merror()  argument
87 	va_start(arglist, fmt);  in merror()
88 	vfprintf(stderr, fmt, arglist);  in merror()
2156 						      const char *fmt, ...)  in buf_printf()  argument
2162 	va_start(ap, fmt);  in buf_printf()
2163 	len = vsnprintf(tmp, SZ, fmt, ap);  in buf_printf()