script/dnp3-gen: update generator to reflect in tree changes

Some changes were made to the generated files instead of the
generator script. Update the script to generate what is
in the current state of the in-tree generated files.

(cherry picked from commit 4976afd96a)

scripts/dnp3-gen/dnp3-gen.py

@@ -157,6 +157,7 @@ output_json_dnp3_objects_template = """/* Copyright (C) 2015 Open Information Se
 #include "app-layer-dnp3.h"
 #include "app-layer-dnp3-objects.h"
 #include "output-json-dnp3-objects.h"
+#include "output-json.h"
 
 #ifdef HAVE_LIBJANSSON
 
@@ -183,7 +184,7 @@ void OutputJsonDNP3SetItem(json_t *js, DNP3Object *object,
             json_object_set_new(js, "data->{{field.name}}",
                 json_string((char *){{field.name}}_b64));
 {% elif field.type == "vstr4" %}
-            json_object_set_new(js, "data->{{field.name}}", json_string(data->{{field.name}}));
+            json_object_set_new(js, "data->{{field.name}}", SCJsonString(data->{{field.name}}));
 {% elif field.type == "chararray" %}
             if (data->{{field.len_field}} > 0) {
                 /* First create a null terminated string as not all versions
@@ -191,7 +192,7 @@ void OutputJsonDNP3SetItem(json_t *js, DNP3Object *object,
                 char tmpbuf[data->{{field.len_field}} + 1];
                 memcpy(tmpbuf, data->{{field.name}}, data->{{field.len_field}});
                 tmpbuf[data->{{field.len_field}}] = '\\0';
-                json_object_set_new(js, "{{field.name}}", json_string(tmpbuf));
+                json_object_set_new(js, "{{field.name}}", SCJsonString(tmpbuf));
             } else {
                 json_object_set_new(js, "{{field.name}}", json_string(""));
             }