Merge branch 'ml/abandon-old-versions'

* ml/abandon-old-versions: git-gui: eliminate _search_exe git-gui: remove procs gitexec and _git_cmd git-gui: use dashless 'git cmd' form for read/write git-gui: default to full copy for linked worktrees git-gui: use git-clone git-gui: remove unused git-version git-gui: use git_init to create new repository dir git-gui: git-remote is always available git-gui: git merge understands --strategy=recursive git-gui: git-diff knows submodules and textconv git-gui: git-blame understands -w and textconv git-gui: git rev-parse knows show_toplevel git-gui: use git-branch --show-current git-gui: git-diff-index always knows submodules git-gui: git ls-files knows --exclude-standard git-gui: require git >= 2.36 Signed-off-by: Johannes Sixt <j6t@kdbg.org>