midx.c: convert FLEX_ALLOC_MEM to FLEX_ALLOC_STR

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/midx.c b/midx.c
index 8a505fd..cb81903 100644 (file)
--- a/midx.c
+++ b/midx.c
@@ -70,7 +70,7 @@ struct multi_pack_index *load_multi_pack_index(const char *object_dir, int local
 
        midx_map = xmmap(NULL, midx_size, PROT_READ, MAP_PRIVATE, fd, 0);
 
-       FLEX_ALLOC_MEM(m, object_dir, object_dir, strlen(object_dir));
+       FLEX_ALLOC_STR(m, object_dir, object_dir);
        m->fd = fd;
        m->data = midx_map;
        m->data_len = midx_size;