minor

mmcv/runner/hooks/logger/text.py

@@ -25,7 +25,7 @@ class TextLoggerHook(LoggerHook):
             time_sec_avg = self.time_sec_tot / (runner.iter + 1)
             eta_sec = time_sec_avg * (runner.max_iters - runner.iter - 1)
             eta_str = str(datetime.timedelta(seconds=int(eta_sec)))
-            log_str += ('eta: {}, '.format(eta_str))
+            log_str += 'eta: {}, '.format(eta_str)
             log_str += (
                 'time: {log[time]:.3f}, data_time: {log[data_time]:.3f}, '.
                 format(log=runner.log_buffer.output))