create compact json models

trainbenchmark/trainbenchmark-generator-jastadd-relast/src/main/java/de/tudresden/inf/st/trainbenchmark/generator/jastadd/RelASTSerializer.java

@@ -34,7 +34,7 @@ public class RelASTSerializer extends ModelSerializer<RelASTGeneratorConfig> {
     System.out.println(jsonPath);
     try {
       container.resolveAll();
-      container.serialize(new File(jsonPath), true);
+      container.serialize(new File(jsonPath), false);
     } catch (SerializationException e) {
       throw new IOException(e);
     }