code: @Nonnull
    public FineUploaderBasic setInputName (@Nonnull @Nonempty final String sInputName)
    {
      ValueEnforcer.notEmpty (sInputName, "InputName");
  
      m_sRequestInputName = sInputName;
      return this;
    }
docs: This usually only useful with the ajax uploader, which sends the name of the
  file as a parameter, using a key name equal to the value of this options. In
  the case of the form uploader, this is simply the value of the name attribute
  of the file's associated input element.
  
  @param sInputName
  The input name
  @return this