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/mailmap.c b/mailmap.c
index 9bb9cf8b30..183a2f65ee 100644
--- a/mailmap.c
+++ b/mailmap.c
@@ -83,7 +83,7 @@ static void add_mapping(struct string_list *map,
 	if (item->util) {
 		me = (struct mailmap_entry *)item->util;
 	} else {
-		me = xcalloc(1, sizeof(struct mailmap_entry));
+		CALLOC_ARRAY(me, 1);
 		me->namemap.strdup_strings = 1;
 		me->namemap.cmp = namemap_cmp;
 		item->util = me;