When comparing ocy to orlower in tty_cmd_cell, there is no need to add yoff (because they are both already relative to the pane). Also fix some other minor nits.
When comparing ocy to orlower in tty_cmd_cell, there is no need to add
yoff (because they are both already relative to the pane). Also fix some
other minor nits.

klaxalk/tmux,klaxalk/tmux,klaxalk/tmux,klaxalk/tmux,klaxalk/tmux