*fixed pd~ regression where instantiation within another instance of pd~...

*fixed pd~ regression where instantiation within another instance of pd~ failed to start due to expectation of the new -unique flag without which all patches are opened within the existing instance.

pd/extra/pd~/pd~.c

@@ -205,7 +205,7 @@ static void pd_tilde_donew(t_pd_tilde *x, char *pddir, char *schedlibdir,
         }       
     }
     snprintf(cmdbuf, MAXPDSTRING,
-"%s -schedlib %s/pdsched -path %s -inchannels %d -outchannels %d -r %g %s\n",
+"%s -unique -schedlib %s/pdsched -path %s -inchannels %d -outchannels %d -r %g %s\n",
         pdexecbuf, schedlibdir, patchdir, ninsig, noutsig, samplerate, pdargs);
 #if 0
 #ifdef PD