[sdlsound] Writing decoded audio to stdout

[Ryan C. Gordon]

>>  } while (sound->flags & SOUND_SAMPLEFLAG_EOF);

Whoops. We're writing one block and quitting...I think that was my bug.

} while ((sound->flags & SOUND_SAMPLEFLAG_EOF) == 0);

Also, you generally can't just redirect to /dev/dsp (or whatever); if 
the audio data's not the same format it expects, it'll give you static 
since it's trying to play the binary data as if it's some other format, 
which never works out well.

--ryan.