net: fix the coding style

Signed-off-by: NZhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Reviewed-by: NLaszlo Ersek <lersek@redhat.com>

net/socket.c

@@ -301,7 +301,9 @@ static NetSocketState *net_socket_fd_init_dgram(NetClientState *peer,
     qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
 
     /* mcast: save bound address as dst */
-    if (is_connected) s->dgram_dst=saddr;
+    if (is_connected) {
+        s->dgram_dst = saddr;
+    }
 
     return s;