ref: ec4c79f3a6ed97ec0c407a870827382cbefb1166
dir: /src/libc/string/strerror.c/
#include <errno.h>
#include <string.h>
#undef strerror
char *
strerror(int errnum)
{
	if (errnum > EUNKNOWN || errnum <= 0)
		errnum = EUNKNOWN;
	return _sys_errlist[errnum];
}