keter: certain comments shift command structure down one

[1xch]

At any point in configuration, indented comments such as:

super + {h,j,k,l}
    echo {hello world, again, thrice, quartered}
    #comment

will cause a shift in commands, i.e. commands will shift to the next down to the next keyset.

This happens in current
https://github.com/thrisp/scpwm/blob/master/keter/config.go#L69, function parseOrders and comment handling, its been an issue.

After looking at it during refactoring after a lengthy shelf time, still not certain how to fix exactly, except do not indent a comment after a key - command order.