Fix retry delay initialization

src/connection.c

@@ -120,7 +120,7 @@ connection_t * proz_connection_init(urlinfo *url, pthread_mutex_t * mutex)
   memcpy(&connection->conn_timeout, &libprozrtinfo.conn_timeout,
          sizeof(connection->conn_timeout));
   memcpy(&connection->retry_delay, &libprozrtinfo.conn_retry_delay,
-         sizeof(&connection->retry_delay));
+         sizeof(connection->retry_delay));
   connection->max_attempts = libprozrtinfo.max_attempts;
 
   connection->rate_bps = 0;