OS X giving "no current client" when using rename_session

[tony]

The tmux tests will raise "no current client" because we are raising exceptions if stderr is returned.

https://github.com/tmux-python/libtmux/blob/v0.8.0/libtmux/session.py#L128

Related links:

• https://www.mail-archive.com/tech@openbsd.org/msg45186.html
• https://marc.info/?l=openbsd-cvs&m=152183263526828&w=2

[eli-schwartz]

Not BSD-specific BTW, this error manifests on Arch Linux as well with an updated tmux.

https://git.archlinux.org/svntogit/community.git/commit/trunk?h=packages/python-libtmux&id=3d24e5183a80421e8cb5a0a37d878d8399b2ff86