Update __init__.py (#7065)

Author: glenn-jocher

utils/loggers/__init__.py

@@ -47,7 +47,7 @@ def __init__(self, save_dir=None, weights=None, opt=None, hyp=None, logger=None,
                      'metrics/precision', 'metrics/recall', 'metrics/mAP_0.5', 'metrics/mAP_0.5:0.95',  # metrics
                      'val/box_loss', 'val/obj_loss', 'val/cls_loss',  # val loss
                      'x/lr0', 'x/lr1', 'x/lr2']  # params
-        self.best_keys = ['best/epoch', 'best/precision', 'best/recall', 'best/mAP_0.5', 'best/mAP_0.5:0.95',]
+        self.best_keys = ['best/epoch', 'best/precision', 'best/recall', 'best/mAP_0.5', 'best/mAP_0.5:0.95']
         for k in LOGGERS:
             setattr(self, k, None)  # init empty logger dictionary
         self.csv = True  # always log to csv