fix for bugs-143

Author: Alexander Perepelkin

src/RemoteSyslogAppender.cpp

@@ -114,8 +114,14 @@ namespace log4cpp {
  _ipAddr = *(in_addr_t*)(pent->h_addr); // fixed bug #1579890
  }
  // Get a datagram socket.
- 
- if ((_socket = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+ _socket = socket(AF_INET, SOCK_DGRAM, 0);
+ if 
+#ifdef WIN32
+(_socket == INVALID_SOCKET)
+#else
+(_socket < 0) 
+#endif
+{
  // loglog("RemoteSyslogAppender: failed to open socket");
  return; // fail silently 
  }