Merge branch 'tb/complete-checkout'

Command line completion (in contrib/) update.

* tb/complete-checkout:
completion: add remaining flags to checkout

diff --combined contrib/completion/git-completion.bash
index fcd83311a36191d7a540c411ce99f02fda57c1b3,539d7f84f3d84adb6d3cbb3301dcbb749033b610..fdd984d34a9240de115edc2e8dee37302574f1c6
--- 1/contrib/completion/git-completion.bash
--- 2/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@@ -1250,7 -1250,8 +1250,8 @@@ _git_checkout (
        --*)
                __gitcomp "
                        --quiet --ours --theirs --track --no-track --merge
-                       --conflict= --orphan --patch
+                       --conflict= --orphan --patch --detach --ignore-skip-worktree-bits
+                       --recurse-submodules --no-recurse-submodules
                        "
                ;;
        *)
@@@ -2350,7 -2351,6 +2351,7 @@@ _git_config (
                advice.rmHints
                advice.statusHints
                advice.statusUoption
 +              advice.ignoredHook
                alias.
                am.keepcr
                am.threeWay