Update -- lesspipe.sh

Update -- lesspipe.sh

	* usr/bin/lesspipe.sh: Redirect stderr to /dev/null once
	script-wide instead of for each individual command.
	Use the '-b' file(1) option instead of piping through awk.
	Process HTML files with 'lynx -dump'
	Handle rpm if rpm is installed.
	Handle rar if unrar is installed.

Signed-off-by: Steve Youngs <steve@steveyoungs.com>