[aur-general] merge python2-dialog into python2-pythondialog

[G. Schlisio]

> Hi,
> please merge python2-dialog into python2-pythondialog as it better
> reflects the name of the upstream.
> 
> https://aur.archlinux.org/packages/python2-dialog/
> https://aur.archlinux.org/packages/python2-pythondialog/
> 
> Thanks
> Daniel
> 
please re-read the last part of ralfs email and follow the intructions
there.

(hint: requests are not done via email to this mailinglist anymore since
a while)