curs_initscr(3) on FreeBSD

The text 882232ee5ece, as FreeBSD 2.1.7.1-RELEASE, FreeBSD 2.1.7-RELEASE, FreeBSD 2.1.5-RELEASE, FreeBSD 2.0.5-RELEASE shipped it.

ncurses screen initialization and manipulation routines

curs_initscr(3) on FreeBSD now