Merge branch 'js/default-branch-name-tests-final-stretch'

Prepare tests not to be affected by the name of the default branch
"git init" creates.

* js/default-branch-name-tests-final-stretch: (28 commits)
  tests: drop prereq `PREPARE_FOR_MAIN_BRANCH` where no longer needed
  t99*: adjust the references to the default branch name "main"
  tests(git-p4): transition to the default branch name `main`
  t9[5-7]*: adjust the references to the default branch name "main"
  t9[0-4]*: adjust the references to the default branch name "main"
  t8*: adjust the references to the default branch name "main"
  t7[5-9]*: adjust the references to the default branch name "main"
  t7[0-4]*: adjust the references to the default branch name "main"
  t6[4-9]*: adjust the references to the default branch name "main"
  t64*: preemptively adjust alignment to prepare for `master` -> `main`
  t6[0-3]*: adjust the references to the default branch name "main"
  t5[6-9]*: adjust the references to the default branch name "main"
  t55[4-9]*: adjust the references to the default branch name "main"
  t55[23]*: adjust the references to the default branch name "main"
  t551*: adjust the references to the default branch name "main"
  t550*: adjust the references to the default branch name "main"
  t5503: prepare aligned comment for replacing `master` with `main`
  t5[0-4]*: adjust the references to the default branch name "main"
  t5323: prepare centered comment for `master` -> `main`
  t4*: adjust the references to the default branch name "main"
  ...

1 files changed, 6 insertions, 3 deletions

diff --git a/t/t6009-rev-list-parent.sh b/t/t6009-rev-list-parent.sh
index 916d9692bc..63fa7c8313 100755
--- a/t/t6009-rev-list-parent.sh
+++ b/t/t6009-rev-list-parent.sh
@@ -2,6 +2,9 @@
 
 test_description='ancestor culling and limiting by parent number'
 
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
 . ./test-lib.sh
 
 check_revlist () {
@@ -45,7 +48,7 @@ test_expect_success 'setup roots, merges and octopuses' '
 	test_commit seven &&
 	git checkout -b yetanotherbranch four &&
 	test_commit eight &&
-	git checkout master &&
+	git checkout main &&
 	test_tick &&
 	git merge --allow-unrelated-histories -m normalmerge newroot &&
 	git tag normalmerge &&
@@ -56,7 +59,7 @@ test_expect_success 'setup roots, merges and octopuses' '
 	test_tick &&
 	git merge -m tetrapus sidebranch anotherbranch yetanotherbranch &&
 	git tag tetrapus &&
-	git checkout master
+	git checkout main
 '
 
 test_expect_success 'rev-list roots' '
@@ -123,7 +126,7 @@ test_expect_success 'dodecapus' '
 		roots="$roots root$i" ||
 		return
 	done &&
-	git checkout master &&
+	git checkout main &&
 	test_tick &&
 	git merge -m dodecapus $roots &&
 	git tag dodecapus &&