ncurses 6.2 - patch 20200418

ncurses 6.2 - 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