Log Message:
{x,}vile: update to 9.8v

From author & maintainer Thomas Dickey.

Changes:

 20220821 (w)
	> Brendan O'Dea:
	+ the font specification in /etc/X11/app-defaults/UXVile was being
	  overridden by the one in XVile.  Additionally update the xvile font
	  to use the Latin-1 equivalent (9x18 instead of 8x13).
	+ apply memory-leak fix from pl-filt.c in 9.8v to pl6filt.c
	+ rename perl6mode and corresponding syntax filter to "raku" (report by
	  Steve Lembark).
	+ update suffix-list for rakumode.
	> Tom Dickey:
	+ portability-fixes for plink.sh
	+ fixes for regexp.c:
	  + build-fix for test_regexp
	  + add parentheses in non-multibyte is_CLASS() macro to correct a
	    problem with pointer expressions.
	  + add I/i toggle in test_regexp to exercise ignorecase.
	+ revise change for lins_chars() to handle UTF-8 in scripts, as that
	  interfered with normal insertions (report by Chris Green).
	+ fix a check in vile-manfilt, to ensure that stepping into previous
	  lines does not use flushed/discarded rows.
	+ build-fix for perl 5.36 (Debian #1014289)
	+ modify error-message from vile-manfilt to show the program name.
	+ fix a state-transition in sh-filt.l, which left some text uncolored
	  (report by Wayne Cuddy).
	+ add markdown mode (mdmode).
	+ update copyright dates
	+ update package/freebsd/*
	+ fix some issues found with Coverity.
	+ fix a few compiler-warnings.