Merge branch 'ab/plug-revisions-leak'

Plug a bit more leaks in the revisions API. * ab/plug-revisions-leak: revisions API: don't leak memory on argv elements that need free()-ing bisect.c: partially fix bisect_rev_setup() memory leak log: refactor "rev.pending" code in cmd_show() log: fix a memory leak in "git show <revision>..." test-fast-rebase helper: use release_revisions() (again) bisect.c: add missing "goto" for release_revisions()