output_thread: don't play next chunk after command==PAUSE

When the PAUSE loop ends, re-check the next command before calling
ao_play() again.

src/output_thread.c

@@ -246,7 +246,11 @@ static gpointer audio_output_task(gpointer arg)
 
 		case AO_COMMAND_PAUSE:
 			ao_pause(ao);
-			break;
+			/* don't "break" here: this might cause
+			   ao_play() to be called when command==CLOSE
+			   ends the paused state - "continue" checks
+			   the new command first */
+			continue;
 
 		case AO_COMMAND_CANCEL:
 			ao->chunk = NULL;