This is as yet untested, but the basic idea is that when games call out
to `system("pulseaudio --check > /dev/null 2>&1")` we'll put our script
in their way and unconditionally return 0. This is for games using libfmod,
which will die when trying to execute pulseaudio right now.
Signed-off-by: Ikey Doherty <ikey@solus-project.com>
