Builder addLenient(String name,String value){
  namesAndValues.add(name);
  namesAndValues.add(value.trim());
  return this;
}

Builder addLenient ( String name , String value ) { namesAndValues . add ( name ) ; namesAndValues . add ( value . trim ( ) ) ; return this ; }
add a field with the specified value without any validation . only appropriate for headers from the remote peer or cache .
