devel/git-cinnabar: rebuild and unbreak after r487197

./helper/cinnabar-helper.c:1464:49: error: no member named 'map' in 'struct oidset'

hashmap_get_size(&track->set.map.map));
                  ~~~~~~~~~~ ^

./helper/cinnabar-helper.c:1712:34: warning: incompatible pointer types passing 'size_t *' (aka 'unsigned int *') to parameter of type 'unsigned long *' [-Wincompatible-pointer-types]

buf = get_commit_buffer(commit, &size);
                                ^~~~~

./commit.h:112:69: note: passing argument to parameter 'size' here
const void *get_commit_buffer(const struct commit *, unsigned long *size);

^

Reported by: pkg-fallout