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

pre-commit-ci[bot] · pre-commit-ci[bot] · commit 5f5e3bbbb4e9 · 2022-10-31T08:56:58.000Z
for more information, see https://pre-commit.ci
diff --git a/repo2docker/__main__.py b/repo2docker/__main__.py
@@ -218,9 +218,9 @@ def get_argparser():
     )
 
     argparser.add_argument(
-        "--engine", 
-        type=str, 
-        default="docker", 
+        "--engine",
+        type=str,
+        default="docker",
         help=Repo2Docker.engine.help,
     )
 
