Change @_env to local variable
Change @_env to local variable

In the SSHKit Abstract backend, the 'with' method declared an instance variable (@_env) that was only used in that method, and ensured it was unset before returning. This would cause errors when nesting 'with' calls, as the outer call would try to use and then unset @_env after the inner call already unset it. It has been changed to a regular local variable, as the desired behaviour is identical to using a local variable anyway.
capistrano/sshkit,robd/sshkit