Update ncurses and associated libraries (form, panel, menu) to
6.4-20230826 (from 5.7-20081102).

Based on result from Thomas Dickey's ncu2openbsd script and then
modified. Switches to the upstream tput. Major bump for the ncurses
libraries and for libedit and libreadline.

Help from tb, millert.

ok deraadt sthen

strnames[i][0] == 'k' && strnames[i][0] == 'f' should be
strnames[i][0] == 'k' && strnames[i][1] == 'f'.

Spotted by the Echelon team with AppChecker static analyzer.

millert@ naddy@ and ncurses 6.0 all agree.

exit() after perror() for pledge failure. Perhaps this got introduced
as a test idiom, either when pledge was young or during the transition
to strings.... dunno

pledge "stdio rpath" seems to work; ok doug

Update to ncurses 5.7, with local changes reapplied.

This is around eight years worth of changes (previously we were around ncurses
5.2), too many to list - many bug fixes and also a few new functions.

A major bump for libcurses, libpanel, libform and libmenu.

ok deraadt

safer snprintf construct with more paranoid length calculation
ok millert

Don't access buf[strlen(buf) - 1] for zero-length strings.

OK jaredy@.

string cleanup; ok tdeval

string fixes; ok millert krw

kill more registers

millert@ ok

getopt(3) returns -1 when out of args, not EOF.

millert@ ok

ncurses-5.2-20010224

Update to ncurses-5.2-20010114

update to ncurses-5.1-20001007

Update to ncurses-5.0-20000325

update to ncurses-5.0-20000311

Update to ncurses-5.0-20000115:
+ additional fixes for non-bce terminals (handling of delete_character)
to work when assume_default_colors() is not specified.
+ modify warning message from _nc_parse_entry() regarding extended
capability names to print only if tic/infocmp/toe have the -v flag
set, and not at all in ordinary user applications. Otherwise, this
warning would be shown for screen's extended capabilities in programs
that use the termcap interface.
+ modify use of _nc_tracing from programs such as tic so their debug
level is not in the same range as values set by trace() function.
+ small panel header cleanup (patch by Juergen Pfeifer).

update to ncurses-5.0-19991204

update to ncurses-5.0-19991127

ncurses-5.0-990626

ncurses-4.2-990424

Add -G flag; ncurses-4.2-990306

ncurses-4.2-990301

infocmp from ncurses-4.2-990116. Needs current libcurses to be useful

strnames[i][0] == 'k' && strnames[i][0] == 'f' should be
strnames[i][0] == 'k' && strnames[i][1] == 'f'.

Spotted by the Echelon team with AppChecker static analyzer.

millert@ naddy@ and ncurses 6.0 all agree.

exit() after perror() for pledge failure. Perhaps this got introduced
as a test idiom, either when pledge was young or during the transition
to strings.... dunno

pledge "stdio rpath" seems to work; ok doug

Update to ncurses 5.7, with local changes reapplied.

This is around eight years worth of changes (previously we were around ncurses
5.2), too many to list - many bug fixes and also a few new functions.

A major bump for libcurses, libpanel, libform and libmenu.

ok deraadt

safer snprintf construct with more paranoid length calculation
ok millert

Don't access buf[strlen(buf) - 1] for zero-length strings.

OK jaredy@.

string cleanup; ok tdeval

string fixes; ok millert krw

kill more registers

millert@ ok

getopt(3) returns -1 when out of args, not EOF.

millert@ ok

ncurses-5.2-20010224

Update to ncurses-5.2-20010114

update to ncurses-5.1-20001007

Update to ncurses-5.0-20000325

update to ncurses-5.0-20000311

Update to ncurses-5.0-20000115:
+ additional fixes for non-bce terminals (handling of delete_character)
to work when assume_default_colors() is not specified.
+ modify warning message from _nc_parse_entry() regarding extended
capability names to print only if tic/infocmp/toe have the -v flag
set, and not at all in ordinary user applications. Otherwise, this
warning would be shown for screen's extended capabilities in programs
that use the termcap interface.
+ modify use of _nc_tracing from programs such as tic so their debug
level is not in the same range as values set by trace() function.
+ small panel header cleanup (patch by Juergen Pfeifer).

update to ncurses-5.0-19991204

update to ncurses-5.0-19991127

ncurses-5.0-990626

ncurses-4.2-990424

Add -G flag; ncurses-4.2-990306

ncurses-4.2-990301

infocmp from ncurses-4.2-990116. Needs current libcurses to be useful