Merge "Fix py3 error in aosp checker" am: 2a81f7cc18

Original change: https://android-review.googlesource.com/c/platform/packages/services/Telecomm/+/1679713

Change-Id: I8618e28b6ab220d9f10beaf5374cc8113bb90148
diff --git a/scripts/aosp_tag_preupload.py b/scripts/aosp_tag_preupload.py
index 77a9714..17f5058 100755
--- a/scripts/aosp_tag_preupload.py
+++ b/scripts/aosp_tag_preupload.py
@@ -49,7 +49,7 @@
 
 def _is_in_aosp():
   branch_info = subprocess.check_output(["git", "branch", "-vv"])
-  return re.search(AOSP_BRANCH_REGEX, branch_info) is not None
+  return re.search(AOSP_BRANCH_REGEX, str(branch_info)) is not None
 
 def _check_aosp_message(aosp_line):
   if re.search(AOSP_COMMIT_LINK_REGEX, aosp_line):