[PATCH] t4014: treat rev-list output as the expected value

[Denton Liu <liu.denton@gmail.com>]

In 6bd26f58ea (t4014: use test_line_count() where possible, 2019-08-27),
we converted many test cases to take advantage of the test_line_count()
function. In one conversion, we inverted the expected and actual value
as tested by test_line_count(). Although functionally correct, if
format-patch ever produced incorrect output, the debugging output would
be a bunch of hashes which would be difficult to debug.

Invert the expected and actual values provided to test_line_count() so
that if format-patch produces incorrect output, the debugging output
will be a list of human-readable files instead.

Helped-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
---
Thanks for point out my mistake, Szeder. This patch can be applied to
the tip of 'dl/format-patch-doc-test-cleanup' and then we should base
Bert's changes on top of this branch.

 t/t4014-format-patch.sh | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh
index 83f52614d3..72b09896cf 100755
--- a/t/t4014-format-patch.sh
+++ b/t/t4014-format-patch.sh
@@ -1610,8 +1610,9 @@ test_expect_success 'format-patch format.outputDirectory option' '
 	test_config format.outputDirectory patches &&
 	rm -fr patches &&
 	git format-patch master..side &&
-	git rev-list master..side >list &&
-	test_line_count = $(ls patches | wc -l) list
+	count=$(git rev-list --count master..side) &&
+	ls patches >list &&
+	test_line_count = $count list
 '
 
 test_expect_success 'format-patch -o overrides format.outputDirectory' '
-- 
2.23.0.248.g3a9dd8fb08