Log Message:
less: Update to 608

Patches privately shared by <pin> and RVP, thanks!

Changes:
608
---
* Add the --header option (github #43).
* Add the --no-number-headers option (github #178).
* Add the --status-line option.
* Add the --redraw-on-quit option (github #36).
* Add the --search-options option (github #213).
* Add the --exit-follow-on-close option (github #244).
* Add 'H' color type to set color of header lines.
* Add #version conditional to lesskey.
* Add += syntax to variable section in lesskey files.
* Allow option name in -- command to end with '=' in addition to '\n'.
* Add $HOME/.config to possible locations of lesskey file (github #153).
* Add $XDG_STATE_HOME and $HOME/.local/state to possible locations
  of history file (github #223).
* Don't read or write history file in secure mode (github #201).
* Fix display of multibyte and double-width chars in prompt.
* Fix ESC-BACKSPACE command when BACKSPACE key does not send 0x08
  (github #188).
* Add more \k codes to lesskey format.
* Fix bug when empty file is modified while viewing it.
* Fix bug when parsing a malformed lesskey file (githb #234).
* Fix bug scrolling history when --incsearch is set (github #214).
* Fix buffer overflow when invoking lessecho with more than 63 -m/-n
  options (github #198).
* Fix buffer overflow in bin_file (github #271).
* Fix bug restoring color at end of highlighted text.
* Fix bug in parsing lesskey file.
* Defer moving cursor to lower left in some more cases.
* Suppress TAB filename expansion in some cases where it doesn't make sense.
* Fix termlib detection when compiler doesn't accept
  calls to undeclared functions.
* Fix bug in input of non-ASCII characters on Windows (github #247)
* Escape filenames when invoking LESSCLOSE.
* Fix bug using multibyte UTF-8 char in search string
  with --incsearch (github #273).

590
---
* Make less able to read lesskey source files (deprecating lesskey).
* If XDG_CONFIG_HOME is set, find lesskey source file
  in $XDG_CONFIG_HOME/lesskey rather than $HOME/.lesskey.
* If XDG_DATA_HOME is set, find and store history file
  in $XDG_DATA_HOME/lesshst rather than $HOME/.lesshst.
* Add the --lesskey-src option.
* Add the --file-size option.
* With -F, if screen is resized to make file fit on one screen, don't exit.
* Fix bug which could leave terminal in mouse-reporting mode
  after exiting less.
* Fix bug which caused failure to respond to window resize.
* Fix backslash bug searching in tag file.

581
---
* Change ESC-u command to toggle, not disable, highlighting per man page.
* Add ESC-U command.
* Add ctrl-W search modifier for wrapping search.
* F command can be interrupted by ^X.
* Support OSC 8 hyperlinks when -R is in effect.
* g command with no number will ignore -j and put first line at top of screen.
* Multiple + or -p command line options are handled better.
* Add the --incsearch option.
* Add the --line-num-width option.
* Add the --status-col-width option.
* Add the --use-color and --color options.
* Display -w highlight even if highlighted line is empty.
* If search result is in a long line, scroll to ensure it is visible.
* Editing the same file under different names now creates only
  one entry in the file list.
* Make visual bell more visible on some terminals.
* Ring end-of-file bell no more than once per second.
* Build can use either Python or Perl for Makefile.aut operations.
* Fix crash when using the @ search modifier.
* Fix crash in the 's' command due to duplicate free.
* Fix realpath crash on Darwin.