Comment 38 for bug 1463480

@thumper: thanks for committing the fix for 1.22.x series.

Will juju 1.22 upgraded agent properly use previously
previously set-env'd value by 1.20 ?

Asking because with 1.20.14 seems to be saving it
(albeit unknown), but as a string rather than bool:

$ juju version
1.20.14-trusty-amd64
$ juju set-env ignore-machine-addresses=true
$ juju get-env |grep true
disable-network-management: true
ignore-machine-addresses: "true"
proxy-ssh: true
ssl-hostname-verification: true