+20210220
+ + improve tic warning when oc/op do not mention SGR 39/49 for xterm
+ compatible XT flag.
+ + revert change to lib_addch.c in waddch_literal() from 20210130, since
+ the followup fix in PutCharLR() actually corrects the problem while
+ this change causes too-early filling/wrapping (report by Johannes
+ Altmanninger).
+ + add/use vt220+pcedit and vt220+vtedit -TD
+ + add scrt/securecrt and absolute -TD
+ + add nel to xterm-new, though supported since X11R5 -TD
+ + add/use xterm+nofkeys -TD
+ + move use of ecma+italics from xterm-basic to xterm+nofkeys -TD
+