Actually use `a:option` instead of `'set-clipboard'` string when comparing the tmux option value. This hasn't been an issue because the only use of the function happens to be checking the value of `'set-clipboard'`.
Actually use `a:option` instead of `'set-clipboard'` string when comparing the tmux option value. This hasn't been an issue because the only use of the function happens to be checking the value of `'set-clipboard'`.