[pre-commit.ci] auto fixes from pre-commit.com hooks

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Author: pre-commit-ci[bot]

pytorch_lightning/strategies/horovod.py

@@ -199,6 +199,7 @@ def _filter_named_parameters(model: nn.Module, optimizer: Optimizer) -> List[Tup
     def register_strategies(cls, strategy_registry: Dict) -> None:
         if _HOROVOD_AVAILABLE:
             import horovod.torch as hvd
+
             hvd.init()
 
             strategy_registry.register(