Bug#4270: xosview should be able to monitor /dev/ttyS? too

[david@eos.lugs.ch (David Frey)]

Package: xosview
Version: 1.3.2-6

Xosview should be able to monitor the /dev/ttyS* lines too; since nowadays
(with the advent of mgetty) a lot of people use /dev/ttyS* for dialout.

David