mktag: minimally update the description.
It lacked a description for the (historically) optional tagger header line.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/Documentation/git-mktag.txt b/Documentation/git-mktag.txt
index 0ac3be1..ea7a752 100644
--- a/Documentation/git-mktag.txt
+++ b/Documentation/git-mktag.txt
@@ -19,18 +19,18 @@
Tag Format
----------
-A tag signature file has a very simple fixed format: three lines of
+A tag signature file has a very simple fixed format: four lines of
object <sha1>
type <typename>
tag <tagname>
+ tagger <tagger>
-followed by some 'optional' free-form signature that git itself
-doesn't care about, but that can be verified with gpg or similar.
-
-The size of the full object is artificially limited to 8kB. (Just
-because I'm a lazy bastard, and if you can't fit a signature in that
-size, you're doing something wrong)
+followed by some 'optional' free-form message (some tags created
+by older git may not have `tagger` line). The message, when
+exists, is separated by a blank line from the header. The
+message part may contain a signature that git itself doesn't
+care about, but that can be verified with gpg.
Author
