(isc_mktcpaddress): Use INADDR_NONE instead of -1.

src/libraries/libisc-new/src/isc_tcp.c

@@ -153,7 +153,7 @@ isc_mktcpaddress(const char *address,
   {
     addr.sin_family = AF_INET;
     addr.sin_addr.s_addr = inet_addr(address);
-    if (addr.sin_addr.s_addr == -1)
+    if (addr.sin_addr.s_addr == INADDR_NONE)
       return NULL;
   }
   else if ((hp = gethostbyname(address)) == NULL)