Merge branch 'ma/reduce-heads-leakfix'

Leak fixes. * ma/reduce-heads-leakfix: reduce_heads: fix memory leaks builtin/merge-base: free commit lists

Junio C Hamano committed Nov 15, 2017 at 12:14 UTC 905f16dd02bb15e0c1e12bf1a6c28510f504f441

No changes.