`committer`, and `tagger`) can be suffixed with `name`, `email`,
and `date` to extract the named component.
-The first line of the message in a commit and tag object is
-`subject`, the remaining lines are `body`. The whole message
-is `contents`.
+The complete message in a commit and tag object is `contents`.
+Its first line is `contents:subject`, the remaining lines
+are `contents:body` and the optional GPG signature
+is `contents:signature`.
For sorting purposes, fields with numeric values sort in numeric
order (`objectsize`, `authordate`, `committerdate`, `taggerdate`).
refs/tags`
eval "$eval"
------------
+
+Author
+------
+Written by Junio C Hamano <gitster@pobox.com>.
+
+Documentation
+-------------
+Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>.
+
+GIT
+---
+Part of the linkgit:git[1] suite