use xbind, xconnect where appropriate.

small edits to arping

libbb/xconnect.c

@@ -54,7 +54,8 @@ void xconnect(int s, const struct sockaddr *s_addr, socklen_t addrlen)
 	if (connect(s, s_addr, addrlen) < 0) {
 		if (ENABLE_FEATURE_CLEAN_UP) close(s);
 		if (s_addr->sa_family == AF_INET)
-			bb_perror_msg_and_die("cannot connect to remote host (%s)",
+			bb_perror_msg_and_die("%s (%s)",
+				"cannot connect to remote host",
 				inet_ntoa(((struct sockaddr_in *)s_addr)->sin_addr));
 		bb_perror_msg_and_die("cannot connect to remote host");
 	}