update: Fix the manifest commit dictionnary format

The structure was changed in last commit but a code path was not properly updated

diff --git a/git-update b/git-update
index a9259c5..87e6f7c 100755 (executable)
--- a/git-update
+++ b/git-update
@@ -28,7 +28,7 @@ def manifest_get_commits(manifest):
             if remote:
                 res[name] = ['FETCH_HEAD', [os.path.join(remotes[remote], name), child.attrib['revision']]]
             else:
-                res[name] = child.attrib["revision"]
+                res[name] = [child.attrib["revision"], []]
 
     return res