doc: am: add missing config am.messageId

Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Kristoffer Haugsbakk committed Feb 9, 2026 at 18:34 UTC c2f700ac27f8d382acb8d4e49b0f714234604fe4
1 file changed +6
Documentation/config/am.adoc
+6
@@ -12,3 +12,9 @@ am.threeWay::
12 records the identity of blobs it is supposed to apply to and we
13 have those blobs available locally (equivalent to giving the
14 `--3way` option from the command line). Defaults to `false`.
15 +
16 +am.messageId::
17 + Add a `Message-ID` trailer based on the email header to the
18 + commit when using linkgit:git-am[1] (see
19 + linkgit:git-interpret-trailers[1]). See also the `--message-id`
20 + and `--no-message-id` options.