lost blank space between metric and data_time after update mmengine to 0.7.0

[r1cheu]

Hi, I'm using mmengine build my custom tool box. It works fine in mmengine v0.6.0. But after I update it to 0.7.0. data_time was add to metric log, but there is no blank sapce before it. where I should modify to make it proper?
log is below.

03/24 22:41:18 - mmengine - INFO - Epoch(val) [55][8/8]  Corr/pearsonr: 0.8109  Corr/r2: 0.6548data_time: 0.0031  time: 0.0450  

[HAOCHENYE]

Thanks for your feedback. We'll fix this issue in PR.