From: Tao Klerks <tao@klerks.biz>

The git-repack doc clearly states that it *does* operate on promisor
packfiles (in a separate partition), with "-a" specified. Presumably
the statements here are outdated, as they feature from the first doc
in 2017 (and the repack support was added in 2018)

Signed-off-by: Tao Klerks <tao@klerks.biz>

Submitted-As: https://lore.kernel.org/git/pull.968.git.1622634446643.gitgitgadget@gmail.com