- Add ncurses patch 20200418
+ improve tracemunch logic for "RUN" compaction.
+ fix a special case in wresize() where copying the old text did not
check if the last cell on a row was the beginning of a fullwidth
character (adapted from patch by Benno Schulenberg).
+ use vt52+keypad in xterm-vt52, from xterm #354 -TD
+ improve see-also section of user_caps.5
- Add ncurses patch 20200411
+ fix find_pair(), overlooked when refactoring for _nc_reserve_pairs()
(report/testcase by Brad Town, cf: 20170812).
+ add a trailing null for magic-string in putwin, flagged by gcc 10
+ update check for gcc version versus gnat to work with gcc 10.x