show-branch: free() allocated "head" before return

Stop leaking the "head" variable, which we've been leaking since it
was originally added in [1], and in its current form since [2]

1. ed378ec7e85 (Make ref resolution saner, 2006-09-11)
2. d9e557a320b (show-branch: store resolved head in heap buffer,
   2017-02-14).

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/show-branch.c b/builtin/show-branch.c
index c013abaf94251bd3b37027e8ab48917a4feb099b..358ac3e519a717f1a354b5d6fa00a8fcd8d77ca5 100644 (file)
--- a/builtin/show-branch.c
+++ b/builtin/show-branch.c
@@ -956,5 +956,6 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
                if (shown_merge_point && --extra < 0)
                        break;
        }
+       free(head);
        return 0;
 }