Finish remerging busybox udhcp and udhcp. Some cleanups as well.
diff --git a/networking/udhcp/arpping.c b/networking/udhcp/arpping.c
index e20395a..363408d 100644
--- a/networking/udhcp/arpping.c
+++ b/networking/udhcp/arpping.c
@@ -44,7 +44,11 @@
 
 
 	if ((s = socket (PF_PACKET, SOCK_PACKET, htons(ETH_P_ARP))) == -1) {
+#ifdef IN_BUSYBOX
 		LOG(LOG_ERR, bb_msg_can_not_create_raw_socket);
+#else
+		LOG(LOG_ERR, "Could not open raw socket");
+#endif
 		return -1;
 	}