3.4.5 `dne' - "Do Not Edit" warning

Usage: (dne prefix [ first_prefix ])
Generate a "DO NOT EDIT" or "EDIT WITH CARE" warning string. Which depends on whether or not the --writable command line option was set. The first argument is a per-line string prefix. The optional second argument is a prefix for the first-line and, in read-only mode, activates the editor hints:

-*- buffer-read-only: t -*- vi: set ro:

Arguments:
prefix - string for starting each output line
first_prefix - Optional - for the first output line