anchor.diff:  
   === [json] / [xml]
   
  -These transformers replace field value containing a string representation of a valid XML or JSON structure with the actual raw XML or JSON structure rather than just the string value. Each applies only to the specific writer, such that `[json]` only applies to `wt=json` and `[xml]` only applies to `wt=xml`.
  +These transformers replace a field value containing a string representation of a valid XML or JSON structure with the actual raw XML or JSON structure instead of just the string value. Each applies only to the specific writer, such that `[json]` only applies to `wt=json` and `[xml]` only applies to `wt=xml`.
   
   [source,plain]
   ----
  
positive.code: * It must be given an unique name: `fl=*,children:[subquery]`
  * There might be a few of them, e.g., `fl=*,sons:[subquery],daughters:[subquery]`.
  * Every `[subquery]` occurrence adds a field into a result document with the given name, the value of this field is a document list, which is a result of executing subquery using document fields as an input.
  * Subquery would use `/select` search handler by default that causes error if it is not configured. This can be changed by supplying `foo.qt` parameter.
  
  Here is how it looks like in various formats:
  
  [source,xml]
  ----
    <result name="response" numFound="2" start="0">
  
negative.code:   ...
  ----
  
  .JSON
  [source,json]
  ----
  { "response":{
  