Since revert and cherry-pick share the same sequencer code, they should both accept the same command-line options. Derive the `__git_cherry_pick_inprogress_options` and `__git_revert_inprogress_options` variables from `__git_sequencer_inprogress_options` so that the options aren't unnecessarily duplicated twice. Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>