zsock: fix STREAM test on macOS

On macOS, in zsock STREAM test, when STREAM zsock was bound with
`tcp://*:*`, the respective connect to `tcp://127.0.0.1:<port>` was
unable to connect and got stuck indefinitely. Fixed by binding to
`tcp://127.0.0.1:*` instead like in other tests in zsock.

src/zsock.c

@@ -942,7 +942,7 @@ zsock_vsend (void *self, const char *picture, va_list argptr)
             zframe_t *frame = zlistx_pack (list);
             zmsg_append (msg, &frame);
         }
-#endif	
+#endif
         else
         if (*picture == 'm') {
             zframe_t *frame;
@@ -1171,7 +1171,7 @@ zsock_vrecv (void *self, const char *picture, va_list argptr)
             }
             zframe_destroy (&frame);
         }
-#ifdef CZMQ_BUILD_DRAFT_API	
+#ifdef CZMQ_BUILD_DRAFT_API
         else
         if (*picture == 'l') {
             zframe_t *frame = zmsg_pop (msg);
@@ -2205,7 +2205,7 @@ zsock_test (bool verbose)
 #ifdef ZMQ_STREAM
     zsock_t *streamrecv = zsock_new(ZMQ_STREAM);
     assert (streamrecv);
-    port = zsock_bind(streamrecv, "tcp://*:*");
+    port = zsock_bind(streamrecv, "tcp://127.0.0.1:*");
     assert(port > 0);
 
     zsock_t *streamsender = zsock_new(ZMQ_STREAM);
@@ -2398,7 +2398,7 @@ zsock_test (bool verbose)
     char* message;
     message = zstr_recv (gather);
     assert (streq(message, "HELLO"));
-    zstr_free (&message);    
+    zstr_free (&message);
 
     zsock_destroy (&gather);
     zsock_destroy (&scatter);