OpenBSD 4.7 tmux的bug修复了

今天测试了OpenBSD 4.7的snapshot，发现tmux可以使用了。

DESCRIPTION
tmux is a terminal multiplexer: it enables a number of terminals to be
created, accessed, and controlled from a single screen. tmux may be de-
tached from a screen and continue running in the background, then later
reattached.

When tmux is started it creates a new session with a single window and
displays it on screen. A status line at the bottom of the screen shows
information on the current session and is used to enter interactive com-
mands.

A session is a single collection of pseudo terminals under the management
of tmux. Each session has one or more windows linked to it. A window
occupies the entire screen and may be split into rectangular panes, each
of which is a separate pseudo terminal (the pty(4) manual page documents
the technical details of pseudo terminals). Any number of tmux instances
may connect to the same session, and any number of windows may be present
in the same session. Once all sessions are killed, tmux exits.