fix(iter-commit): ambiguous argument error

In repositories like

	> git branch -a
	* test
	> ls
	test

`repo.iter_commits` failed due to an ambigous argument
(`'git rev-list test`).
Now this cannot happen anymore.

fixes #264

1 files changed, 5 insertions, 2 deletions

diff --git a/git/objects/commit.py b/git/objects/commit.py
index b9718694..f13760fd 100644
--- a/git/objects/commit.py
+++ b/git/objects/commit.py
@@ -189,9 +189,12 @@ class Commit(base.Object, Iterable, Diffable, Traversable, Serializable):
         if 'pretty' in kwargs:
             raise ValueError("--pretty cannot be used as parsing expects single sha's only")
         # END handle pretty
-        args = list()
+
+        # use -- in any case, to prevent possibility of ambiguous arguments
+        # see https://github.com/gitpython-developers/GitPython/issues/264
+        args = ['--']
         if paths:
-            args.extend(('--', paths))
+            args.extend((paths, ))
         # END if paths
 
         proc = repo.git.rev_list(rev, args, as_process=True, **kwargs)