Fix exception in salt-call when master_type is 'disable'
Fix exception in salt-call when master_type is 'disable'

If `salt-call` is invoked without using the `--local` flag, it will
return an exception when `master_type` is `disable`. Fix this use
case.

Signed-off-by: Sergey Kizunov <dfddabaa9af05982b01940b837a87844148069c9@ni.com>

saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt