use CALLOC_ARRAY

Add and apply a semantic patch for converting code that open-codes
CALLOC_ARRAY to use it instead.  It shortens the code and infers the
element size automatically.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/pretty.c b/pretty.c
index c5f5ecc40d..d5efd00e21 100644
--- a/pretty.c
+++ b/pretty.c
@@ -678,7 +678,7 @@ static int mailmap_name(const char **email, size_t *email_len,
 {
 	static struct string_list *mail_map;
 	if (!mail_map) {
-		mail_map = xcalloc(1, sizeof(*mail_map));
+		CALLOC_ARRAY(mail_map, 1);
 		read_mailmap(mail_map);
 	}
 	return mail_map->nr && map_user(mail_map, email, email_len, name, name_len);