[PATCH 09/11] gc: fix a memory leak

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

Fix a memory leak in code added in 41abfe15d95 (maintenance: add
pack-refs task, 2021-02-09), we need to call strvec_clear() on the
"struct strvec" that we initialized.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 builtin/gc.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/builtin/gc.c b/builtin/gc.c
index 021e9256ae2..eeff2b760e0 100644
--- a/builtin/gc.c
+++ b/builtin/gc.c
@@ -168,9 +168,15 @@ struct maintenance_run_opts;
 static int maintenance_task_pack_refs(MAYBE_UNUSED struct maintenance_run_opts *opts)
 {
 	struct strvec pack_refs_cmd = STRVEC_INIT;
+	int ret;
+
 	strvec_pushl(&pack_refs_cmd, "pack-refs", "--all", "--prune", NULL);
 
-	return run_command_v_opt(pack_refs_cmd.v, RUN_GIT_CMD);
+	ret = run_command_v_opt(pack_refs_cmd.v, RUN_GIT_CMD);
+
+	strvec_clear(&pack_refs_cmd);
+
+	return ret;
 }
 
 static int too_many_loose_objects(void)
-- 
2.37.0.874.g7d3439f13c4