Github user ptgoetz commented on the pull request:
https://github.com/apache/storm/pull/1398#issuecomment-221686373
@jerrypeng For tracking what goes into each branch/release. Github only
gives us merge notifications for the branch a pull request targeted. If you had
merged this to other branches, we wouldn't know unless we looked for it in
other branches. That's why most of the time we add a comment noting which
branches a patch was applied to. It saves a little time for other committers.
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