Merge branch 'jk/repo-info-path-keys' into ps/setup-split-discovery-and-setup

* jk/repo-info-path-keys:
  repo: add path.gitdir with absolute and relative suffix formatting
  repo: add path.commondir with absolute and relative suffix formatting
  path: extract format_path() and use in rev-parse

diff --cc builtin/repo.c
Simple merge

diff --cc builtin/rev-parse.c
Simple merge

diff --cc path.h
Simple merge