[cairo] Fix double-free or corruption in tor22

[Uli Schlachter]

Hi,

On 08.05.19 22:47, Antony Lee wrote:
> Hi,
> I have a PR fixing a double-free or corruption in tor22 at
> https://gitlab.freedesktop.org/cairo/cairo/merge_requests/10, which has not
> seen any activity for a few months.  The original bug report and suggested
> patch were provided years ago in
> https://gitlab.freedesktop.org/cairo/cairo/issues/44.
> Let me know if there anthing I can do to get it reviewed (and hopefully
> merged).
> Thanks in advance,
> Antony Lee

I took a look, tripped over my own toes, noticed my mistake, and merged
your merge request.

Thanks for it and sorry for the eterenal delay in getting this change in.

Cheers,
Uli
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