put a log message before opening the FastCGI connection socket

FCGX_OpenSocket will call exit() if there was a problem with creating the socket.

winixd/core/app.cpp

@@ -265,7 +265,14 @@ char sock_group[WINIX_OS_USERNAME_SIZE];
 		return false;
 
 	unlink(sock);
+
+	log << log3 << "App: trying to create a fcgi connection socket: " << sock << logend << logsave;
 	fcgi_socket = FCGX_OpenSocket(sock, config.fcgi_socket_listen);
+	/*
+	 * WARNING:
+	 * when there is a problem with creating the socket then FCGX_OpenSocket will call exit()
+	 * and we never reach here
+	 */
 
 	if( fcgi_socket < 0 )
 	{