ref: 4a1fc5ccb596a0f88f465b81a638f0068e82f0b9
dir: /utils/libregexp/regerror.c/
#include <lib9.h>
#include "regexp.h"
void
regerror(char *s)
{
char buf[132];
strcpy(buf, "regerror: ");
strcat(buf, s);
strcat(buf, "\n");
write(2, buf, strlen(buf));
exits("regerr");
}