new copyright notice

new copyright notice

SCCS-vsn: lib/libcurses/clrtobot.c 5.5
SCCS-vsn: lib/libcurses/clrtoeol.c 5.4
SCCS-vsn: lib/libcurses/cr_put.c 5.5
SCCS-vsn: lib/libcurses/setterm.c 5.8
SCCS-vsn: lib/libcurses/curses.c 5.7
SCCS-vsn: lib/libm/common/atan2.c 5.5
SCCS-vsn: lib/libcurses/curses.h 5.8
SCCS-vsn: lib/libm/common/sincos.c 5.4
SCCS-vsn: lib/libm/common/tan.c 5.4
SCCS-vsn: lib/libcurses/delch.c 5.4
SCCS-vsn: lib/libcurses/deleteln.c 5.4
SCCS-vsn: lib/libm/common/trig.h 5.5
SCCS-vsn: lib/libcurses/delwin.c 5.4
SCCS-vsn: lib/libcurses/endwin.c 5.4
SCCS-vsn: lib/libcurses/erase.c 5.4
SCCS-vsn: lib/libcurses/fullname.c 5.4
SCCS-vsn: lib/libcurses/getch.c 5.6
SCCS-vsn: lib/libcurses/getstr.c 5.4
SCCS-vsn: lib/libcurses/id_subwins.c 5.4
SCCS-vsn: lib/libcurses/idlok.c 5.4
SCCS-vsn: lib/libcurses/initscr.c 5.5
SCCS-vsn: lib/libcurses/insch.c 5.4
SCCS-vsn: lib/libcurses/insertln.c 5.4
SCCS-vsn: lib/libcurses/longname.c 5.4
SCCS-vsn: lib/libcurses/move.c 5.5
SCCS-vsn: lib/libcurses/mvprintw.c 5.5
SCCS-vsn: lib/libcurses/mvscanw.c 5.4