discard the old line before updating the screen so that the line
commit816585453281591d41194c9a44fc72be079430c4
authorbostic <bostic>
Wed, 29 Dec 1993 16:42:02 +0000 (29 16:42 +0000)
committerbostic <bostic>
Wed, 29 Dec 1993 16:42:02 +0000 (29 16:42 +0000)
tree487e8fd304d9a99b26b28608bee0cca4d2324159
parenteab361ed596035fe87ff8e3ad4d61c1c8c53d601
discard the old line before updating the screen so that the line
display routines don't find it in the cache
vi/v_txt.c