git cl: rename and relocate CreateDescriptionFromLog func.
git cl: rename and relocate CreateDescriptionFromLog func.

R=ehmaldonado

Change-Id: I89535733b7b19370b95ce1b94f4cc69265e9b293
Reviewed-on: https://chromium-review.googlesource.com/c/1279137
Commit-Queue: Andrii Shyshkalov <a30c74fa30536fe7ea81ed6dec202e35e149e1fd@chromium.org>
Reviewed-by: Edward Lesmes <d05609f027dc667cc37492b1dc1bdea5d60fa82a@chromium.org>

CoherentLabs/depot_tools,CoherentLabs/depot_tools