ref: 3b10c3e9a0a6be334302573b03f6f32bdda04864
dir: /sys/src/ape/lib/fmt/werrstr.c/
#include <stdarg.h>
#include <errno.h>
#include "fmt.h"
extern char *_plan9err;
void
werrstr(const char *fmt, ...)
{
	va_list arg;
	va_start(arg, fmt);
	snprint(_plan9err, 128, fmt, arg);
	va_end(arg);
	errno = EPLAN9;
}