bug#35421: Also bind left image rotation key

[Lars Ingebrigtsen]

"Basil L. Contovounesios" <contovob@tcd.ie> writes:

> I think this is a good solution for several reasons:
>
> 1. It does not require a new key binding, and it does not overly
>    complicate the calling convention of the current key binding.
>
> 2. It turns image-rotate into a general image-rotating subroutine,
>    which users and library authors alike can reuse.
>
> 2.1. It does not limit rotations of imagemagick images to multiples of
>      90 degrees.
>
> and I don't see any drawbacks, so I would like to push this to master,
> subject to comments/objections.

Looks good to me.

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   bloggy blog: http://lars.ingebrigtsen.no