Fix `train.py` parameter groups desc error (#6318)

train.py

@@ -172,7 +172,7 @@ def train(hyp,  # path/to/hyp.yaml or hyp dictionary
     optimizer.add_param_group({'params': g1, 'weight_decay': hyp['weight_decay']})  # add g1 with weight_decay
     optimizer.add_param_group({'params': g2})  # add g2 (biases)
     LOGGER.info(f"{colorstr('optimizer:')} {type(optimizer).__name__} with parameter groups "
-                f"{len(g0)} weight, {len(g1)} weight (no decay), {len(g2)} bias")
+                f"{len(g0)} weight (no decay), {len(g1)} weight, {len(g2)} bias")
     del g0, g1, g2
 
     # Scheduler