added missing port ZZUKN

bsmd.Tool/LocodeSQliteImport.cs

@@ -172,6 +172,7 @@ namespace bsmd.Tool
                     else
                     {
                         string locode = reader2.GetString(0) + reader2.GetString(2);
+                        if (locode.Equals("ZZUKN")) continue;
                         if (!currentLocodes.Contains(locode))
                             deleteIds.Add(reader2.GetInt32(1));
                     }