dleyna: Handle broken /proc/net/tcp file
dleyna: Handle broken /proc/net/tcp file

Don't crash if we reach the end of the line when skipping the first
field of /proc/net/tcp

https://bugzilla.gnome.org/show_bug.cgi?id=740052

jasuarez/grilo-upnp-plugin,jasuarez/grilo-upnp-plugin