Generate the errors text.

Args:
  errors (vector): cli generated errors string collection

Returns:
   (string): the errors text.

Exit application after displaing a message.

Args:
  status (int): the exit code
  msg (string): text to display/log

Print informal messages on the console.

Args:
  options (map):  options map, used key :quiet
  msg (string): the message to display

Returns:
  nothing

Generate the usage text.

Args:
  options_summary (string): cli generated options help

Returns:
  (string): the usage text.