refs: convert read_ref_at to struct object_id

diff --git a/builtin/show-branch.c b/builtin/show-branch.c
index 722a7f4bec11f3f77299176a73186e30dcbc5da5..8bf42e529db4ee888b749a476384f939573002b1 100644 (file)
--- a/builtin/show-branch.c
+++ b/builtin/show-branch.c
@@ -731,7 +731,7 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
                                /* Ah, that is a date spec... */
                                timestamp_t at;
                                at = approxidate(reflog_base);
-                               read_ref_at(ref, flags, at, -1, oid.hash, NULL,
+                               read_ref_at(ref, flags, at, -1, &oid, NULL,
                                            NULL, NULL, &base);
                        }
                }
@@ -743,7 +743,7 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
                        timestamp_t timestamp;
                        int tz;
 
-                       if (read_ref_at(ref, flags, 0, base+i, oid.hash, &logmsg,
+                       if (read_ref_at(ref, flags, 0, base + i, &oid, &logmsg,
                                        &timestamp, &tz, NULL)) {
                                reflog = i;
                                break;