urlmatch.c: add and use a *_release() function

Plug a memory leak in credential_apply_config() by adding and using a
new urlmatch_config_release() function. This just does a
string_list_clear() on the "vars" member.

This finished up work on normalizing the init/free pattern in this
API, started in 73ee449bbf2 (urlmatch.[ch]: add and use
URLMATCH_CONFIG_INIT, 2021-10-01).

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

1 files changed, 1 insertions, 0 deletions

diff --git a/urlmatch.h b/urlmatch.h
index 34a3ba6..9f40b00 100644
--- a/urlmatch.h
+++ b/urlmatch.h
@@ -71,5 +71,6 @@ struct urlmatch_config {
 }
 
 int urlmatch_config_entry(const char *var, const char *value, void *cb);
+void urlmatch_config_release(struct urlmatch_config *config);
 
 #endif /* URL_MATCH_H */