Notifier, tmux set -g affects all tmux sessions globally, solution: remove -g

[scmx]

https://github.com/guard/guard/blob/master/lib/guard/notifiers/tmux.rb

tmux set -g #{ color_location }

Having it like this incorrectly targets all tmux sessions,
it should only target the one that guard runs inside, like this:

tmux set #{ color_location }

I was trying to make the window (tab) with guard in it (in my case number 0) get colored instead of status-left-bg

:color_location => '-w -t 0 window-status-bg'

But this combined with set -g incorrecty targets all windows in all sessions.

How to reproduce:

1. Open up two terminals, start up tmux in both of them and then guard in one of them.
2. Change a watched file so that a notification appears.
3. Both tmux sessions now have a colored status-left-bg

[netzpirat]

Thanks a lot for reporting. We'll release a new Guard version this week...