openswap.conf - misspelled option
To reproduce - run a bare-metal installation using btrfs with swap, hibernate and encryption.
While troubleshooting the openswap.conf - found this https://github.com/calamares/calamares/issues/1659#issuecomment-920155121
I took the default openswap.conf and modified it - only to discover afterwards - a new test install - the config is almost correct when written by the installer only the keyfile_device_mount_options configuration is written as
Which will create an error message as the expected line would be