ref: b1e5500b85865c6ddf705fdeeabd62b0a501b43c
dir: /sys/src/ape/lib/9/rerrstr.c/
#include "libc.h"
void
rerrstr(char *buf, uint nbuf)
{
char tmp[ERRMAX];
tmp[0] = 0;
errstr(tmp, sizeof tmp);
utfecpy(buf, buf+nbuf, tmp);
errstr(tmp, sizeof tmp);
}