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

for more information, see https://pre-commit.ci

dpdata/plugins/ase.py

@@ -172,7 +172,7 @@ def to_system(self, data, **kwargs):
         return structures
 
     def to_labeled_system(self, data, *args, **kwargs):
-        """Convert System to ASE Atoms object. """
+        """Convert System to ASE Atoms object."""
         from ase import Atoms
         from ase.calculators.singlepoint import SinglePointCalculator