git: update to v2.21.0

Update to git version v2.21.0. Required changes follow upstream commits:

* 6a7895fd8a3bd409f2b71ffc355d5142172cc2a0
  (commit: prepare free_commit_buffer and release_commit_memory for
  any repo)

* e092073d643b17c82d72cf692fbfaea9c9796f11
  (tree.c: make read_tree*() take 'struct repository *')

Signed-off-by: Christian Hesse <mail@eworm.de>
Reviewed-by: John Keeping <john@keeping.me.uk>

1 files changed, 1 insertions, 1 deletions

diff --git a/ui-atom.c b/ui-atom.c
index cd66f82..1056f36 100644
--- a/ui-atom.c
+++ b/ui-atom.c
@@ -140,7 +140,7 @@ void cgit_print_atom(char *tip, const char *path, int max_count)
         }
         while ((commit = get_revision(&rev)) != NULL) {
                 add_entry(commit, host);
-                free_commit_buffer(commit);
+                free_commit_buffer(the_repository->parsed_objects, commit);
                 free_commit_list(commit->parents);
                 commit->parents = NULL;
         }