Merge branch 'mg/rev-list-one-side-only'

* mg/rev-list-one-side-only: git-log: put space after commit mark t6007: test rev-list --cherry log --cherry: a synonym rev-list: documentation and test for --cherry-mark revision.c: introduce --cherry-mark rev-list/log: factor out revision mark generation rev-list: --left/right-only are mutually exclusive rev-list: documentation and test for --left/right-only t6007: Make sure we test --cherry-pick revlist.c: introduce --left/right-only for unsymmetric picking