[Tails-dev] [review'n'merge:1.2.1] test/8161-more-robust-pid…

Hi,

the proposed branch makes the Pidgin tests a bit more reliable.

The only change outside the test suite is that it installs xdotool,
which is now needed in the test suite (and I suspect we'll want to use
it in a few other similar cases).

Cheers,
--
intrigeri