Update cli_printMessage.sh:
    
        - Stop using $(caller) built-in function to build the
          documentation entry. Instead, start using the FUNCDIRNAM
          variable to retrive the function directory name of the
          functionality the AsToKnowMoreLine was triggered.
    
        - Update the centos-art.sh help command-line interface to the
          following form:
        
            centos-art help path/to/dir
        
          The --read option is the default action used when no option is
          passed to centos-art.sh help functionality. The form shown above
          describes pretty well what we are doing.