Eric Callahan 5a966836b5 moonraker: backup the most recent working config
Attempt to take a backup of the configuration file if Moonraker
loads successfully and has not seen a config change.

If Moonraker fails to load due to a config error, attempt to fallback
to the backup configuration.  If that fails, exit the server.

Signed-off-by:  Eric Callahan <arksine.code@gmail.com>
2022-02-03 17:19:17 -05:00
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