fix whitespace violation

Author: Byron

git/test/test_docs.py

@@ -26,7 +26,6 @@ def test_init_repo_object(self, rw_dir):
         # [1-test_init_repo_object]
         from git import Repo
 
-
         # rorepo is a Repo instance pointing to the git-python repository.
         # For all you know, the first argument to Repo is a path to the repository
         # you want to work with