revert(3p/git): Revert merge of git upstream at v2.26.2

This causes cgit to serve error pages, which is undesirable.

This reverts commit 5229c9b232, reversing
changes made to f2b211131f.

third_party/git/t/t7400-submodule-basic.sh

@@ -55,21 +55,6 @@ test_expect_success 'add aborts on repository with no commits' '
 	test_i18ncmp expect actual
 '
 
-test_expect_success 'status should ignore inner git repo when not added' '
-	rm -fr inner &&
-	mkdir inner &&
-	(
-		cd inner &&
-		git init &&
-		>t &&
-		git add t &&
-		git commit -m "initial"
-	) &&
-	test_must_fail git submodule status inner 2>output.err &&
-	rm -fr inner &&
-	test_i18ngrep "^error: .*did not match any file(s) known to git" output.err
-'
-
 test_expect_success 'setup - repository in init subdirectory' '
 	mkdir init &&
 	(
@@ -171,11 +156,9 @@ test_expect_success 'submodule add to .gitignored path fails' '
 	(
 		cd addtest-ignore &&
 		cat <<-\EOF >expect &&
-		The following paths are ignored by one of your .gitignore files:
+		The following path is ignored by one of your .gitignore files:
 		submod
-		hint: Use -f if you really want to add them.
-		hint: Turn this message off by running
-		hint: "git config advice.addIgnoredFile false"
+		Use -f if you really want to add it.
 		EOF
 		# Does not use test_commit due to the ignore
 		echo "*" > .gitignore &&
@@ -208,17 +191,6 @@ test_expect_success 'submodule add to reconfigure existing submodule with --forc
 	)
 '
 
-test_expect_success 'submodule add relays add --dry-run stderr' '
-	test_when_finished "rm -rf addtest/.git/index.lock" &&
-	(
-		cd addtest &&
-		: >.git/index.lock &&
-		! git submodule add "$submodurl" sub-while-locked 2>output.err &&
-		test_i18ngrep "^fatal: .*index\.lock" output.err &&
-		test_path_is_missing sub-while-locked
-	)
-'
-
 test_expect_success 'submodule add --branch' '
 	echo "refs/heads/initial" >expect-head &&
 	cat <<-\EOF >expect-heads &&
@@ -384,28 +356,6 @@ test_expect_success 'status should only print one line' '
 	test_line_count = 1 lines
 '
 
-test_expect_success 'status from subdirectory should have the same SHA1' '
-	test_when_finished "rmdir addtest/subdir" &&
-	(
-		cd addtest &&
-		mkdir subdir &&
-		git submodule status >output &&
-		awk "{print \$1}" <output >expect &&
-		cd subdir &&
-		git submodule status >../output &&
-		awk "{print \$1}" <../output >../actual &&
-		test_cmp ../expect ../actual &&
-		git -C ../submod checkout HEAD^ &&
-		git submodule status >../output &&
-		awk "{print \$1}" <../output >../actual2 &&
-		cd .. &&
-		git submodule status >output &&
-		awk "{print \$1}" <output >expect2 &&
-		test_cmp expect2 actual2 &&
-		! test_cmp actual actual2
-	)
-'
-
 test_expect_success 'setup - fetch commit name from submodule' '
 	rev1=$(cd .subrepo && git rev-parse HEAD) &&
 	printf "rev1: %s\n" "$rev1" &&
@@ -427,14 +377,6 @@ test_expect_success 'init should register submodule url in .git/config' '
 	test_cmp expect url
 '
 
-test_expect_success 'status should still be "missing" after initializing' '
-	rm -fr init &&
-	mkdir init &&
-	git submodule status >lines &&
-	rm -fr init &&
-	grep "^-$rev1" lines
-'
-
 test_failure_with_unknown_submodule () {
 	test_must_fail git submodule $1 no-such-submodule 2>output.err &&
 	test_i18ngrep "^error: .*no-such-submodule" output.err
@@ -585,6 +527,7 @@ test_expect_success 'update --init' '
 	test_must_fail git config submodule.example.url &&
 
 	git submodule update init 2> update.out &&
+	cat update.out &&
 	test_i18ngrep "not initialized" update.out &&
 	test_must_fail git rev-parse --resolve-git-dir init/.git &&
 
@@ -602,6 +545,7 @@ test_expect_success 'update --init from subdirectory' '
 	(
 		cd sub &&
 		git submodule update ../init 2>update.out &&
+		cat update.out &&
 		test_i18ngrep "not initialized" update.out &&
 		test_must_fail git rev-parse --resolve-git-dir ../init/.git &&