Do not use the action string (which is an identifer) as replaced
placeholder in messages for device hotplug/hotunplug/update.
Instead, use complete strings for all the actions, and also for all the
usages (confirmation message, success message, error message).
Since the action is the same for all the devices, create the messages
outside the iteration to avoid translating them more than once.
Signed-off-by: Pino Toscano <ptoscano@redhat.com>
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