fix clang warning missing-braces

../fdManagerTest.cpp:76:29: warning: suggest braces around initialization of subobject [-Wmissing-braces]
   76 |         osiSockAddr addr = {0};
      |                             ^
      |                             {}

modules/libcom/test/fdManagerTest.cpp

@@ -73,7 +73,7 @@ public:
     }
     osiSockAddr bind()
     {
-        osiSockAddr addr = {0};
+        osiSockAddr addr = {{0}};
         addr.ia.sin_family = AF_INET;
         addr.ia.sin_addr.s_addr = htonl(INADDR_LOOPBACK);