Merge branch 'ar/submodule-add-config'

Large part of "git submodule add" gets rewritten in C. * ar/submodule-add-config: submodule--helper: introduce add-config subcommand

Junio C Hamano committed Sep 20, 2021 at 15:20 UTC b5a36278f4f3219c1158c7891ba25fe29f5eebf7

No changes.