Synopsis:
   $stripansi(<text>)

Technical:
   This function strips out any occurrences of the ESC character from the
   input text.

Practical:
   This function is mostly useful for cleaning any output that will be sent
   to a display window when DISPLAY_ANSI is turned on.  The function is no
   different from $strip, except it only strips out ESCs.

Returns:
   input text with ESCs removed

Examples:
   $stripansi($*)             make sure default input has no ESCs

See Also:
   set(4) display_ansi; strip(6); stripansicodes(6); stripc(6)