patch 8.1.0993: ch_read() may return garbage if terminating NL is missing commit https://github.com/vim/vim/commit/772153f8d85c83e08427d93460a676d7f079f002 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Mar 4 12:09:49 2019 +0100 patch 8.1.0993: ch_read() may return garbage if terminating NL is missing Problem: ch_read() may return garbage if terminating NL is missing. Solution: Add terminating NUL. (Ozaki Kiichi, closes https://github.com/vim/vim/issues/4065)

# Test of WRAP AROUND mode setting.
INIT
WANTSCREEN

RESET

PUSH "\e[?7h"
$REP 170: PUSH "*"

PUSH "\e[?7l\e[3;1H"
$REP 177: PUSH "*"

PUSH "\e[?7h\e[5;1HOK"

!Output
$SEQ 0 2: ?screen_row \# = "********************************************************************************"
          ?screen_row  3 = ""
          ?screen_row  4 = "OK"