less: Update to version 685

less: Update to version 685

- Update from version 679 to 685
- No change to rootfile
- Changelog
    685
	* Add --cmd option (github #624).
	* Add LESS_TERMCAP_SUSPEND and LESS_TERMCAP_RESUME (github #654).
	* Change --incsearch so that after typing each character of the pattern,
	  the search begins at the position where the search command was invoked,
	  not the current position (github #640).
	* Allow mixing of option arguments and filename arguments on the
	  command line unless POSIXLY_CORRECT is set (github #653).
	* Don't output U+00AD and U+200D, and fix some bugs handling emoji
	  modifier characters (github #637).
	* Fix hang if a search using ^S modifier matches empty string (github #634).
	* Fix bug using -g and -J (github #636).
	* Fix bug when pasting a search pattern while --incsearch is active
	  (github #635).
	* Fix bug in Windows build when autorepeating a search pattern (github #639).
	* Fix lesskey bug using #stop directive.
	* Fix lesskey bug using "invalid" action (github #643).
	* Fix bug causing file to appear to end prematurely if an input command
	  was received during a file read (github #649).
	* Fix performance issue in & filtering (github #638). Problem was introduced
	  in da2a9ecdf16beb642d0c030e35f0351c5f2e5a12 and released in less-673.
	* Fix some problems reported by valgrind (github #659, github #660, github #661).

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>