[PATCH] t0006: date_mode can leak .strftime_fmt member

["Ævar Arnfjörð Bjarmason" <avarab@gmail.com>]

From: Junio C Hamano <gitster@pobox.com>

As there is no date_mode_release() API function, and given the
set of current callers it probably is not worth adding one, let's
release the .strftime_fmt member that is obtained from strdup()
before the caller of show_date() is done with it.

This allows us to mark t0006 as passing under the leak sanitizer.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---

A trivial leak test from Junio that fell between the cracks. Submitted
with my suggested fix-up in
https://lore.kernel.org/git/211104.86mtmki5ol.gmgdl@evledraar.gmail.com/

 t/helper/test-date.c | 4 +++-
 t/t0006-date.sh      | 2 ++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/t/helper/test-date.c b/t/helper/test-date.c
index 099eff4f0fc..27a36a5c5fe 100644
--- a/t/helper/test-date.c
+++ b/t/helper/test-date.c
@@ -34,7 +34,7 @@ static void show_human_dates(const char **argv)
 
 static void show_dates(const char **argv, const char *format)
 {
-	struct date_mode mode;
+	struct date_mode mode = { 0 };
 
 	parse_date_format(format, &mode);
 	for (; *argv; argv++) {
@@ -53,6 +53,8 @@ static void show_dates(const char **argv, const char *format)
 
 		printf("%s -> %s\n", *argv, show_date(t, tz, &mode));
 	}
+
+	free((void *)mode.strftime_fmt);
 }
 
 static void parse_dates(const char **argv)
diff --git a/t/t0006-date.sh b/t/t0006-date.sh
index 6b757d71692..5d01f57b270 100755
--- a/t/t0006-date.sh
+++ b/t/t0006-date.sh
@@ -1,6 +1,8 @@
 #!/bin/sh
 
 test_description='test date parsing and printing'
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 # arbitrary reference time: 2009-08-30 19:20:00
-- 
2.34.0.795.g1e9501ab396