The filters are applied in the order as listed below. The <command>
argument is always evaluated in the shell context using the 'eval' command
(with the notable exception of the commit filter, for technical reasons).
-Prior to that, the $GIT_COMMIT environment variable will be set to contain
+Prior to that, the `$GIT_COMMIT` environment variable will be set to contain
the id of the commit being rewritten. Also, GIT_AUTHOR_NAME,
GIT_AUTHOR_EMAIL, GIT_AUTHOR_DATE, GIT_COMMITTER_NAME, GIT_COMMITTER_EMAIL,
and GIT_COMMITTER_DATE are taken from the current commit and exported to