Fix Screen::scrollUp() behavior

Review Request #130133 - Created May 16, 2017 and updated

Information
Octoploid Octoploid
konsole
master
379318
Reviewers
konsole
hindenburg

Patch from Nicholas Marriott (of tmux fame).
See: https://github.com/tmux/tmux/issues/931

Currently Screen::scrollUp() is broken and cannot be used by tmux.
("set -as terminal-overrides ',*:indn@'" in .tmux.conf is a workaround)

Fix the issue by copying the checks in Screen::scrollDown().

Tested with tmux trunk.

Octoploid Octoploid
Review request changed

Groups:

+konsole
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