less: Update to version 633

less: Update to version 633

- Update from version 608 to 633
- Update of rootfile not required
- Changelog
    Major changes between "less" versions 632 and 633
	* Fix build on systems which have ncurses/termcap.h or
	  ncursesw/termcap.h but not termcap.h.
    Major changes between "less" versions 608 and 632
	* Add LESSUTFCHARDEF environment variable (github #275).
	* Add # command (github #330).
	* Add ^S search modifier (github #196).
	* Add --wordwrap option (github #113).
	* Add --no-vbell option (github #304).
	* Add --no-search-headers option (github #44).
	* Add --modelines option (github #89).
	* Add --intr option (github #224).
	* Add --proc-backspace, --proc-tab and --proc-return options (github #335).
	* Add --show-preproc-errors option (github #258).
	* Add LESS_LINES and LESS_COLUMNS environment variables (github #84).
	* Add LESS_DATA_DELAY environment variable (github #337).
	* Allow empty "lines" field in --header option.
	* Update Unicode tables.
	* Improve ability of ^X to interrupt F command (github #49).
	* Status column (-J) shows off-screen matches.
	* Parenthesized sub-patterns in searches are colored with unique colors,
	  if supported by the regular expression library (github #196).
	* Don't allow opening a tty as file input unless -f is set (github #309).
	* Don't require newline input after +&... option (github #339).
	* Fix incorrect handling of some Private Use Unicode characters.
	* Fix ANSI color bug when overstriking with colored chars (github #276).
	* Fix compiler const warning (github #279).
	* Fix signal race in iread (github #280).
	* Fix reading procfs files on Linux (github #282).
	* Fix --ignore-case with ctrl-R (no regex) search (github #300).
	* Fix bug doing repeat search after setting & filter (github #299).
	* Fix bug doing repeat search before non-repeat search.
	* Fix crash with -R and certain line lengths (github #338).
	* Fix input of Windows dead keys (github #352).
	* Don't retain search options from a cancelled search (github #302).
	* Don't call realpath on fake filenames like "-" (github #289).
	* Implement lesstest test suite.
	* Convert function parameter definitions from K&R to C89 (github #316).

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