status test: add missing && to <<EOF blocks

When a test forgets to include && after each command, it is possible
for an early command to succeed but the test to fail, which can hide
bugs.

Checked using the following patch to the test harness:

	--- a/t/test-lib.sh
	+++ b/t/test-lib.sh
	@@ -425,7 +425,17 @@ test_eval_ () {
		eval </dev/null >&3 2>&4 "$*"
	 }

	+check_command_chaining_ () {
	+	eval >&3 2>&4 "(exit 189) && $*"
	+	eval_chain_ret=$?
	+	if test "$eval_chain_ret" != 189
	+	then
	+		error 'bug in test script: missing "&&" in test commands'
	+	fi
	+}
	+
	 test_run_ () {
	+	check_command_chaining_ "$1"
		test_cleanup=:
		expecting_failure=$2
		setup_malloc_check

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>

t/t7512-status-help.sh

@@ -669,15 +669,15 @@ EOF
 test_expect_success 'status showing detached at and from a tag' '
 	test_commit atag tagging &&
 	git checkout atag &&
-	cat >expected <<\EOF
+	cat >expected <<\EOF &&
 HEAD detached at atag
 nothing to commit (use -u to show untracked files)
 EOF
 	git status --untracked-files=no >actual &&
 	test_i18ncmp expected actual &&
 
 	git reset --hard HEAD^ &&
-	cat >expected <<\EOF
+	cat >expected <<\EOF &&
 HEAD detached from atag
 nothing to commit (use -u to show untracked files)
 EOF
@@ -695,7 +695,7 @@ test_expect_success 'status while reverting commit (conflicts)' '
 	test_commit new to-revert.txt &&
 	TO_REVERT=$(git rev-parse --short HEAD^) &&
 	test_must_fail git revert $TO_REVERT &&
-	cat >expected <<EOF
+	cat >expected <<EOF &&
 On branch master
 You are currently reverting commit $TO_REVERT.
   (fix conflicts and run "git revert --continue")
@@ -716,7 +716,7 @@ EOF
 test_expect_success 'status while reverting commit (conflicts resolved)' '
 	echo reverted >to-revert.txt &&
 	git add to-revert.txt &&
-	cat >expected <<EOF
+	cat >expected <<EOF &&
 On branch master
 You are currently reverting commit $TO_REVERT.
   (all conflicts fixed: run "git revert --continue")
@@ -735,7 +735,7 @@ EOF
 
 test_expect_success 'status after reverting commit' '
 	git revert --continue &&
-	cat >expected <<\EOF
+	cat >expected <<\EOF &&
 On branch master
 nothing to commit (use -u to show untracked files)
 EOF