Fix line length.

Author: Oleh Kozynets

pandas/core/arrays/categorical.py

@@ -1074,8 +1074,9 @@ def remove_unused_categories(self, inplace=no_default):
         """
         if inplace is not no_default:
             warn(
-                "The `inplace` parameter in pandas.Categorical.remove_unused_categories "
-                "is deprecated and will be removed in a future version.",
+                "The `inplace` parameter in pandas.Categorical."
+                "remove_unused_categories is deprecated and "
+                "will be removed in a future version.",
                 FutureWarning,
                 stacklevel=2,
             )