Merge branch 'kn/rev-list-missing-fix'

"git rev-list --missing" did not work for missing commit objects,
which has been corrected.

* kn/rev-list-missing-fix:
  rev-list: add commit object support in `--missing` option
  rev-list: move `show_commit()` to the bottom
  revision: rename bit to `do_not_die_on_missing_objects`

builtin/reflog.c

@@ -298,7 +298,7 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix)
 		struct rev_info revs;
 
 		repo_init_revisions(the_repository, &revs, prefix);
-		revs.do_not_die_on_missing_tree = 1;
+		revs.do_not_die_on_missing_objects = 1;
 		revs.ignore_missing = 1;
 		revs.ignore_missing_links = 1;
 		if (verbose)