commit-graph: use string-list API for input

diff --git a/builtin/fmt-merge-msg.c b/builtin/fmt-merge-msg.c
index 8e8a15ea4ad6de2bb73f63d39a0895a263918774..bd680be6874da29cf776c84468a60888beea53fb 100644 (file)
--- a/builtin/fmt-merge-msg.c
+++ b/builtin/fmt-merge-msg.c
@@ -485,10 +485,10 @@ static void fmt_merge_msg_sigs(struct strbuf *out)
        struct strbuf tagbuf = STRBUF_INIT;
 
        for (i = 0; i < origins.nr; i++) {
-               unsigned char *sha1 = origins.items[i].util;
+               struct object_id *oid = origins.items[i].util;
                enum object_type type;
                unsigned long size, len;
-               char *buf = read_sha1_file(sha1, &type, &size);
+               char *buf = read_object_file(oid, &type, &size);
                struct strbuf sig = STRBUF_INIT;
 
                if (!buf || type != OBJ_TAG)