Does anybody please port the following NetBSD patch to OpenBSD?
You can apply this patch simply to the OpenBSD src.

https://github.com/NetBSD/src/commit/964e441ae0de9ef8ef53f77dddf4aa1ced782c15

This patch fixes an issue where long editing command lines will
overwrite the last help messages.

You can reproduce this issue with the sample program in the commit
message. Just compile the sample code and run it. While you're
editing a command more than one line, typing '?' will show the help
message, but the last help message will be overwritten, so users
miss it. This patch solves this issue.

-- 
Yuichiro NAITO (naito.yuichro@gmail.com)