Merge branch 'du/get-tar-commit-id-is-plumbing' into maint

Doc update to mark "git get-tar-commit-id" as a plumbing command.

* du/get-tar-commit-id-is-plumbing:
doc: move git-get-tar-commit-id to plumbing

diff --combined command-list.txt
index 2107b5bc17583c83920b1353e5c883908f801aca,d8927168bf6937dfc1238fc61bbc78836e8e724e..ba233285d66819155d4ed845cc25776c563997cc
--- 1/command-list.txt
--- 2/command-list.txt
+++ b/command-list.txt
@@@ -96,7 -96,7 +96,7 @@@ git-for-each-re
  git-format-patch                        mainporcelain
  git-fsck                                ancillaryinterrogators          complete
  git-gc                                  mainporcelain
- git-get-tar-commit-id                   ancillaryinterrogators
+ git-get-tar-commit-id                   plumbinginterrogators
  git-grep                                mainporcelain           info
  git-gui                                 mainporcelain
  git-hash-object                         plumbingmanipulators
@@@ -152,7 -152,7 +152,7 @@@ git-rerer
  git-reset                               mainporcelain           worktree
  git-revert                              mainporcelain
  git-rev-list                            plumbinginterrogators
 -git-rev-parse                           ancillaryinterrogators
 +git-rev-parse                           plumbinginterrogators
  git-rm                                  mainporcelain           worktree
  git-send-email                          foreignscminterface             complete
  git-send-pack                           synchingrepositories