init: fix bugs

Signed-off-by: Nxionglei6 <xionglei6@huawei.com>

services/param/watcher/proxy/watcher_manager.cpp

@@ -243,10 +243,11 @@ void WatcherManager::RunLoop()
     const int32_t RECV_BUFFER_MAX = 5 * 1024;
     std::vector<char> buffer(RECV_BUFFER_MAX, 0);
     bool retry = false;
+    ssize_t recvLen = 0;
     while (!stop_) {
         int fd = GetServerFd(retry);
         if (fd >= 0) {
-            ssize_t recvLen = recv(fd, buffer.data(), RECV_BUFFER_MAX, 0);
+            recvLen = recv(fd, buffer.data(), RECV_BUFFER_MAX, 0);
         }
         if (stop_) {
             break;