[PATCH 09/29] t7810: use test_expect_code() instead of hand-rolled comparison

This test manually checks the exit code of git-grep for a particular
value. In doing so, it breaks the &&-chain. An upcoming change will
teach --chain-lint to check the &&-chain inside subshells, so this
manual exit code handling will run afoul of the &&-chain check.
Therefore, replace the manual handling with test_expect_code() and a
normal &&-chain.

Signed-off-by: Eric Sunshine <redacted>
---
 t/t7810-grep.sh | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/t/t7810-grep.sh b/t/t7810-grep.sh
index 1797f632a3..fecee602c1 100755
--- a/t/t7810-grep.sh
+++ b/t/t7810-grep.sh

@@ -845,10 +845,9 @@ test_expect_success 'grep from a subdirectory to search wider area (1)' '
 test_expect_success 'grep from a subdirectory to search wider area (2)' '
 	mkdir -p s &&
 	(
-		cd s || exit 1
-		( git grep xxyyzz .. >out ; echo $? >status )
-		! test -s out &&
-		test 1 = $(cat status)
+		cd s &&
+		test_expect_code 1 git grep xxyyzz .. >out &&
+		! test -s out
 	)
 '
 

-- 
2.18.0.419.gfe4b301394