+20190323
+ + move macro for is_linetouched() inside NCURSES_NOMACROS ifndef.
+ + corrected prototypes in several manpages using script to extract
+ those in compilable form.
+ + use _nc_copy_termtype2() rather than direct assignment in setupterm,
+ in case it is called repeatedly using fallback terminfo descriptions
+ (report/patch by Werner Fink).
+