+20220423
+ + in-progress work on invalid_merge(), disable it (cf: 20220402).
+ + fix memory leak in _nc_tic_dir() when called from _nc_set_writedir().
+ + fix memory leak in tic when "-c" option is used.
+
+20220416
+ + add a limit-check to guard against corrupt terminfo data
+ (report/testcase by NCNIPC of China).
+ + add check/warning in configure script if option --with-xterm-kbs is
+ missing or inconsistent (Arch #74379).
+ + add setlocale call to several test-programs.
+ + allow extended-color number in opts parameter of wattr_on.
+
+20220409
+ + add test/test_unget_wch.c
+
+20220402
+ + amend extended_captype(), returning CANCEL if a string is explicitly
+ cancelled.
+ + make description-fields distinct -TD
+
+20220326
+ + update teken -TD
+ + add teken-16color, teken-vt and teken-sc -TD
+ + add a few missing details for vte-2018 (report by Robert Lange) -TD
+
+20220319
+ + add xgterm -TD
+ + correct setal in mintty/tmux entries, add to vte-2018 (report by
+ Robert Lange)
+ + add blink to vte-2018 (report by Robert Lange)
+ + improve tic warning about XT versus redundant tsl, etc.
+
+20220312
+ + add xterm+acs building-block -TD
+ + add xterm-p370, for use in older terminals -TD
+ + add dec+sl to xterm-new, per xterm patch #371 -TD
+ + add mosh and mosh-256color -TD
+