Gerrit trigger plugin already sets Environment variables for the following: GERRIT_CHANGE_OWNER_NAME, GERRIT_PROJECT, GERRIT_PATCHSET_NUMBER, etc..

I'm suggesting to add a GERRIT_REPLY_MESSAGE variable to that list so scripts and plugins can have access to the comment a user enters when voting on a patchset.

My use case is that I have a jenkins plugin that adds a post build/publisher step. I want to set conditions or publish things based on the reply comment that the Gerrit user enters.