tests: mark a couple more test cases as requiring rebase -p

The `--preserve-merges` option has been deprecated, and as a consequence
we started to mark test cases that require that option to be supported,
in preparation for removing that support eventually.

Since we marked those test cases, a couple more crept into the test
suite, and with this patch, we mark them, too.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t3422-rebase-incompatible-options.sh

@@ -65,12 +65,13 @@ test_rebase_am_only --ignore-whitespace
 test_rebase_am_only --committer-date-is-author-date
 test_rebase_am_only -C4
 
-test_expect_success '--preserve-merges incompatible with --signoff' '
+test_expect_success REBASE_P '--preserve-merges incompatible with --signoff' '
 	git checkout B^0 &&
 	test_must_fail git rebase --preserve-merges --signoff A
 '
 
-test_expect_success '--preserve-merges incompatible with --rebase-merges' '
+test_expect_success REBASE_P \
+	'--preserve-merges incompatible with --rebase-merges' '
 	git checkout B^0 &&
 	test_must_fail git rebase --preserve-merges --rebase-merges A
 '

t/t3427-rebase-subtree.sh

@@ -38,7 +38,8 @@ test_expect_success 'setup' '
 '
 
 # FAILURE: Does not preserve master4.
-test_expect_failure 'Rebase -Xsubtree --preserve-merges --onto commit 4' '
+test_expect_failure REBASE_P \
+	'Rebase -Xsubtree --preserve-merges --onto commit 4' '
 	reset_rebase &&
 	git checkout -b rebase-preserve-merges-4 master &&
 	git filter-branch --prune-empty -f --subdirectory-filter files_subtree &&
@@ -48,7 +49,8 @@ test_expect_failure 'Rebase -Xsubtree --preserve-merges --onto commit 4' '
 '
 
 # FAILURE: Does not preserve master5.
-test_expect_failure 'Rebase -Xsubtree --preserve-merges --onto commit 5' '
+test_expect_failure REBASE_P \
+	'Rebase -Xsubtree --preserve-merges --onto commit 5' '
 	reset_rebase &&
 	git checkout -b rebase-preserve-merges-5 master &&
 	git filter-branch --prune-empty -f --subdirectory-filter files_subtree &&
@@ -58,7 +60,8 @@ test_expect_failure 'Rebase -Xsubtree --preserve-merges --onto commit 5' '
 '
 
 # FAILURE: Does not preserve master4.
-test_expect_failure 'Rebase -Xsubtree --keep-empty --preserve-merges --onto commit 4' '
+test_expect_failure REBASE_P \
+	'Rebase -Xsubtree --keep-empty --preserve-merges --onto commit 4' '
 	reset_rebase &&
 	git checkout -b rebase-keep-empty-4 master &&
 	git filter-branch --prune-empty -f --subdirectory-filter files_subtree &&
@@ -68,7 +71,8 @@ test_expect_failure 'Rebase -Xsubtree --keep-empty --preserve-merges --onto comm
 '
 
 # FAILURE: Does not preserve master5.
-test_expect_failure 'Rebase -Xsubtree --keep-empty --preserve-merges --onto commit 5' '
+test_expect_failure REBASE_P \
+	'Rebase -Xsubtree --keep-empty --preserve-merges --onto commit 5' '
 	reset_rebase &&
 	git checkout -b rebase-keep-empty-5 master &&
 	git filter-branch --prune-empty -f --subdirectory-filter files_subtree &&
@@ -78,7 +82,8 @@ test_expect_failure 'Rebase -Xsubtree --keep-empty --preserve-merges --onto comm
 '
 
 # FAILURE: Does not preserve Empty.
-test_expect_failure 'Rebase -Xsubtree --keep-empty --preserve-merges --onto empty commit' '
+test_expect_failure REBASE_P \
+	'Rebase -Xsubtree --keep-empty --preserve-merges --onto empty commit' '
 	reset_rebase &&
 	git checkout -b rebase-keep-empty-empty master &&
 	git filter-branch --prune-empty -f --subdirectory-filter files_subtree &&