get_ref_dir(): take the containing directory as argument

diff --git a/builtin/mktree.c b/builtin/mktree.c
index 098395fda1932674e29f8d2cb332c722a6cb275f..4ae1c412d47bd581f22ec8b821a1111224dddd28 100644 (file)
--- a/builtin/mktree.c
+++ b/builtin/mktree.c
@@ -60,6 +60,7 @@ static void write_tree(unsigned char *sha1)
        }
 
        write_sha1_file(buf.buf, buf.len, tree_type, sha1);
+       strbuf_release(&buf);
 }
 
 static const char *mktree_usage[] = {