t: branch: fix broken && chains

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t3200-branch.sh

@@ -425,14 +425,14 @@ test_expect_success '--set-upstream-to fails on a non-ref' '
 test_expect_success 'use --set-upstream-to modify HEAD' '
 	test_config branch.master.remote foo &&
 	test_config branch.master.merge foo &&
-	git branch my12
+	git branch my12 &&
 	git branch --set-upstream-to my12 &&
 	test "$(git config branch.master.remote)" = "." &&
 	test "$(git config branch.master.merge)" = "refs/heads/my12"
 '
 
 test_expect_success 'use --set-upstream-to modify a particular branch' '
-	git branch my13
+	git branch my13 &&
 	git branch --set-upstream-to master my13 &&
 	test "$(git config branch.my13.remote)" = "." &&
 	test "$(git config branch.my13.merge)" = "refs/heads/master"
@@ -443,7 +443,7 @@ test_expect_success '--unset-upstream should fail if given a non-existent branch
 '
 
 test_expect_success 'test --unset-upstream on HEAD' '
-	git branch my14
+	git branch my14 &&
 	test_config branch.master.remote foo &&
 	test_config branch.master.merge foo &&
 	git branch --set-upstream-to my14 &&
@@ -465,7 +465,7 @@ test_expect_success '--unset-upstream should fail on detached HEAD' '
 '
 
 test_expect_success 'test --unset-upstream on a particular branch' '
-	git branch my15
+	git branch my15 &&
 	git branch --set-upstream-to master my14 &&
 	git branch --unset-upstream my14 &&
 	test_must_fail git config branch.my14.remote &&