ALSA MIDI backend: Quick and dirty fix for bogus zero-velocity note-off...

ALSA MIDI backend: Quick and dirty fix for bogus zero-velocity note-off messages; output a note-on with zero velocity instead.

pd/src/s_midi_alsa.c

@@ -157,10 +157,7 @@ void sys_alsa_putmidimess(int portno, int a, int b, int c)
         else if (a >= 144)      // note
         {
             channel = a-144;
-            if (c)
-                snd_seq_ev_set_noteon(&ev,channel,b,c);
-            else
-                snd_seq_ev_set_noteoff(&ev,channel,b,c);
+            snd_seq_ev_set_noteon(&ev,channel,b,c);
         }
         snd_seq_ev_set_direct(&ev);
         snd_seq_ev_set_subs(&ev);