sync: Fix git command for aborting rebase being called incorrectly.

The argument list was incorrectly destructured so only the first
element of the list was considered a git-cmd, split up by each
character in the string.

Change-Id: Idee8a95a89a7da8b8addde07135354fc506c2758
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/435839
Reviewed-by: Josip Sokcevic <sokcevic@google.com>
Commit-Queue: Erik Elmeke <erik@haleytek.corp-partner.google.com>
Tested-by: Erik Elmeke <erik@haleytek.corp-partner.google.com>
diff --git a/project.py b/project.py
index 377e98c..28b1941 100644
--- a/project.py
+++ b/project.py
@@ -749,7 +749,7 @@
 
         def _git(*args):
             # Ignore return code, in case there was no rebase in progress.
-            GitCommand(self, *args, log_as_error=False).Wait()
+            GitCommand(self, args, log_as_error=False).Wait()
 
         _git("cherry-pick", "--abort")
         _git("rebase", "--abort")