+20211009
+ + implement "+m" option in tabs program.
+ + fill in some details for infoton -TD
+ + fix spelling/consistency in several descriptions -TD
+ + use vt420+lrmm in vt420 -TD
+ + modify save_tty_settings() to avoid opening /dev/tty for cases other
+ than reset/init, e.g., for clear.
+ + modify output of "toe -as" to show first description found rather
+ than the last.
+ + improve tic checks for number of parameters of smglp, smgrp, smgtp,
+ and smgbp (cf: 20020525).
+ + correct off-by-one comparison in last_char(), which did not allow
+ special case of ":" in a terminfo description field (cf: 20120407).
+ + remove check in tic that assumes that none or both parameterized and
+ non-parameterized margin-setting capabilities are present
+ (cf: 20101002).
+
+20211002
+ + use return-value from vsnprintf to reallocate as needed to allow for
+ buffers larger than the screen size (report by "_RuRo_").
+ + modify tset "-q" option to refrain from modifying terminal modes, to
+ match the documentation.
+ + add section on margins to terminfo.5, adapted from X/Open Curses.
+ + make tput/tset warning messages consistently using alias names when
+ those are used, rather than the underlying program's name.
+ + improve tput usage message for aliases such as clear, by eliminating
+ tput-specific portions.
+ + add a check in toe to ensure that a "termcap file" is text rather
+ than binary.
+ + further build-fixes for OpenBSD 6.9, whose header files differ from
+ the other BSDs.
+
+20210925
+ + add kbeg to xterm+keypad to accommodate termcap applications -TD
+ + add smglp and smgrp to vt420+lrmm, to provide useful data for the
+ "tabs" +m option -TD
+ + build-fix for gcc 3.4.3 with Solaris10, which does not allow forward
+ reference of anonymous struct typedef.
+ + modify tput to allow multiple commands per line.
+ + minor fixes for tset manpage.
+
+20210911
+ + adjust ifdef in test_opaque.c to fix build with ncurses 5.7
+ + add testing note for xterm-{hp|sco|sun} -TD
+ + corrected description for ansi.sys-old -TD
+ + add xterm+nopcfkeys, to fill in keys for xterm-hp, xterm-sun -TD
+ + use hp+arrows in a few places -TD
+ + use hp+pfk-cr in a few places -TD
+
+20210905
+ + correct logic in filtering of redefinitions (report by Sven Joachim,
+ cf: 20210828).
+