fix flake

Author: Byron

Diff for: test/test_clone.py

@@ -12,14 +12,16 @@
     with_rw_directory,
 )
 
+
 class TestClone(TestBase):
     @with_rw_directory
     def test_checkout_in_non_empty_dir(self, rw_dir):
         non_empty_dir = Path(rw_dir)
         garbage_file = non_empty_dir / 'not-empty'
         garbage_file.write_text('Garbage!')
 
-        # Verify that cloning into the non-empty dir fails while complaining about the target directory not being empty/non-existent
+        # Verify that cloning into the non-empty dir fails while complaining about
+        # the target directory not being empty/non-existent
         try:
             self.rorepo.clone(non_empty_dir)
         except git.GitCommandError as exc: