if devinfo.type != AUDIO_MIXER_CLASS is true, xstatbar will never make
progress and loop forever. Fix it by trying the next device.
from Tobias Ulmer, thanks!
ok jasper@ landry@
xstatbar is a simple system monitor that shows various stats in an X
window that's immovable and not part of your tab-order. It was built to
go with tiling window managers like scrotwm and xmonad where you can
configure a small region of the screen as "off-limits" for windows.
