Jonas Witschel authored Jul 01, 2021 and Allan McRae committed Jul 01, 2021

pacman_date is set to the current date during build without respecting
SOURCE_DATE_EPOCH. As a result, a build cannot be fully reproduced on a later
date because the date embedded into the man pages does not match.

In contrast, the built-in asciidoc attribute "localdate" respects
SOURCE_DATE_EPOCH and has the desired ISO 8601 format, so simply use that
instead of the custom "pacman_date" attribute.

Fixes: FS#71154

Signed-off-by: Jonas Witschel <diabonas at archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>