Merge branch 'al/ref-filter-merged-and-no-merged'

Hotfix.

* al/ref-filter-merged-and-no-merged:
  ref-filter: plug memory leak in reach_filter()

Author: gitster

ref-filter.c

@@ -2239,12 +2239,14 @@ static void reach_filter(struct ref_array *array,
 {
 	struct rev_info revs;
 	int i, old_nr;
-	struct commit **to_clear = xcalloc(sizeof(struct commit *), array->nr);
+	struct commit **to_clear;
 	struct commit_list *cr;
 
 	if (!check_reachable)
 		return;
 
+	to_clear = xcalloc(sizeof(struct commit *), array->nr);
+
 	repo_init_revisions(the_repository, &revs, NULL);
 
 	for (i = 0; i < array->nr; i++) {