pre-upload.py: whitelist COMMIT-QUEUE.ini from ebuild revbump check

Changes to this config file (anywhere it may live) do not actually
require an ebuild revbump.

BUG=None
TEST=Local test of preupload hook against a COMMIT-QUEUE.ini CL; unit
tests pass

Change-Id: I37259fdddccec5790542856914f2269d63737470
Reviewed-on: https://chromium-review.googlesource.com/340572
Commit-Ready: Aviv Keshet <akeshet@chromium.org>
Tested-by: Aviv Keshet <akeshet@chromium.org>
Reviewed-by: Richard Barnette <jrbarnette@chromium.org>
diff --git a/pre-upload.py b/pre-upload.py
index 969d828..36d31ff 100755
--- a/pre-upload.py
+++ b/pre-upload.py
@@ -588,7 +588,7 @@
       full_details=True)
 
   # Don't yell about changes to whitelisted files...
-  whitelist = ('ChangeLog', 'Manifest', 'metadata.xml')
+  whitelist = ('ChangeLog', 'Manifest', 'metadata.xml', 'COMMIT-QUEUE.ini')
   affected_path_objs = [x for x in affected_path_objs
                         if os.path.basename(FinalName(x)) not in whitelist]
   if not affected_path_objs: