Fix logic error pointed by Meuuh

modules/codec/quicktime.c

@@ -268,10 +268,10 @@ static int Open( vlc_object_t *p_this )
 
 #ifdef __APPLE__
         case VLC_FOURCC('I','L','B','C'): /* iLBC */
-            if ((err == noErr) || (qtVersion < 0x07500000)) 
+            if ((err != noErr) || (qtVersion < 0x07500000)) 
                 return VLC_EGENERIC;
         case VLC_FOURCC('i','l','b','c'): /* iLBC */
-            if ((err == noErr) || (qtVersion < 0x07500000)) 
+            if ((err != noErr) || (qtVersion < 0x07500000)) 
                 return VLC_EGENERIC;
 #endif
         case VLC_FOURCC('s','a','m','r'): /* 3GPP AMR audio */