replace eprint() functions with BSD error functions

util.c

@@ -11,27 +11,6 @@ emallocz(unsigned int size) {
 	void *res = calloc(1, size);
 
 	if(!res)
-		eprint("fatal: could not malloc() %u bytes\n", size);
+		err(EXIT_FAILURE, "could not malloc() %u bytes\n", size);
 	return res;
 }
-
-void
-eprint(const char *errstr, ...) {
-	va_list ap;
-
-	va_start(ap, errstr);
-	vfprintf(stderr, errstr, ap);
-	va_end(ap);
-	exit(EXIT_FAILURE);
-}
-
-void
-eprintn(const char *errstr, ...) {
-	va_list ap;
-
-	va_start(ap, errstr);
-	vfprintf(stderr, errstr, ap);
-	va_end(ap);
-	fprintf(stderr, ": %s\n", strerror(errno));
-	exit(EXIT_FAILURE);
-}