Device detached events are not printed with --json

[nisargjhaveri]

Expected behavior

It should print some events when device is detached even when running with --json option similar to the log printed when running normally.

Actual behavior.

It only prints device connected events and no device detached/disconnected events.

Steps to reproduce the problem

Run ios-device -c -t 0 -j
Connect, disconnsct and again connect a device
Notice that it printed the connected event twice without the disconnect event.
Notice the behavior without -j to get more context.