Abbreviate SHA-1 in output to client
Created by: spearce
getId().toString() returns an ugly internal JGit string listing the current revision flags attached to the RevCommit. This is not interesting or relevant to the end-user of Gerrit.
Instead abbreviate the SHA-1 to be 8 hex digits and print that as a
clean string. For most Git repositories this will be uniquely
identified. It is shorter to use in commands like
git show when the
end-user wants to inspect a commit that was rejected by the CLA