K 10
svn:author
V 2
cy
K 8
svn:date
V 27
2022-07-29T17:08:34.024467Z
K 7
svn:log
V 491
telnet: Fix telnet segfault when invalid set or help help commands

Silently ignore invalid set ' ' and invalid help help commands.
This is the same fix applied by NetBSD in hg commit 1019940:4f248823eaff.

PR:		265097
Reported by:	Simon Josefsson <simon@josefsson.org>
Obtained from:	NetBSD hg commit 1019940:4f248823eaff
		NetBSD PR/56918

(cherry picked from commit a7399ea2dd7810e76dcfd52248764cb8004d49a4)

Git Hash:   eeadef8fd52388bb9345df0ef472e0e7feca4afa
Git Author: cy@FreeBSD.org
END