t5411: finish preparing for main being the default branch name

In addition to the trivial search-and-replace performed over the course
of the previous three commits, there is one test in t5411 that depends
on the length of the default branch name.

Adjust it and use `main` as the default branch name in this test.

Signed-off-by: Johannes Schindelin <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: dscho

t/t5411-proc-receive-hook.sh

@@ -5,16 +5,11 @@
 
 test_description='Test proc-receive hook'
 
-GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
 . ./test-lib.sh
 
-test_have_prereq PREPARE_FOR_MAIN_BRANCH || {
-	test_skip="In transit for the default branch name 'main'"
-	test_done
-}
-
 . "$TEST_DIRECTORY"/t5411/common-functions.sh
 
 setup_upstream_and_workbench () {

t/t5411/once-0010-report-status-v1.sh

@@ -69,11 +69,11 @@ test_expect_success "proc-receive: report status v1" '
 	proc-receive> option forced-update
 	proc-receive> ng refs/for/next/topic target branch not exist
 	000eunpack ok
-	0019ok refs/heads/main
-	001eok refs/for/main/topic1
+	0017ok refs/heads/main
+	001cok refs/for/main/topic1
 	0016ok refs/heads/foo
 	0033ng refs/for/next/topic target branch not exist
-	001eok refs/for/main/topic2
+	001cok refs/for/main/topic2
 	0000# post-receive hook
 	post-receive< <COMMIT-A> <COMMIT-B> refs/heads/main
 	post-receive< <ZERO-OID> <COMMIT-A> refs/for/main/topic1