Bug#684691: pulseaudio creates /.pulse and /.pulse-cookie

[Adam Dane]

This looks similar to a bug in the Gentoo distribution at 
https://bugs.gentoo.org/show_bug.cgi?id=438844

When the alsa-utils init script restores the sound card state (via 
alsactl), it runs without a HOME environment variable, so the files get 
created in /.

Likely, the pulseaudio plugin for ALSA (from libasound2-plugins 
package) causes pulseaudio to be invoked, creating the files.

The patch in the Gentoo bug currently adds a HOME variable to alsactl's 
environment with an appropriate folder.  This means the files get 
created there instead of /.

If there is a way to disable the plugin when the alsa-utils init script 
runs, it would avoid creating the files altogether.

Thanks,

Adam