Part of the maintainer's job is to keep up-to-date and publish the 'amlog' which stores a mapping between a patch's 'Message-Id' e-mail header and the commit generated by applying said patch. But our Documentation/howto/maintain-git.txt does not mention the amlog, or the scripts which exist to help the maintainer keep the amlog up-to-date. (This bit me during the first integration round I did as interim maintainer[1] involved a lot of manual clean-up. More recently it has come up as part of a research effort to better understand a patch's lifecycle on the list[2].) Address this gap by briefly documenting the existence and purpose of the 'post-applypatch' hook in maintaining the amlog entries. [1]: https://lore.kernel.org/git/Y19dnb2M+yObnftj@nand.local/ [2]: https://lore.kernel.org/git/CAJoAoZ=4ARuH3aHGe5yC_Xcnou_c396q_ZienYPY7YnEzZcyEg@mail.gmail.com/ Suggested-by: Junio C Hamano <gitster@pobox.com> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>