Revision 189930

MFC r189216 (ahead original schedule due to the upcoming 7.2-RELEASE)

 - Remove kH (kp_kll) from screen. It has the identical key sequence as
   @7 (kp_end). As ncurses has the limitation that it returns the first
   matched key symbol, you can not use END in ncurses based program under
   screen (like ports/misc/mc).

 We did similar changes to xterm entry last year for exactly the same reason.

 PR:           132199
 Submitted by: Timur I. Bakeyev <timur at FreeBSD.org>