[arch-general] systemd 220 crypt swap

[Carsten Mattner]

I had to downgrade to systemd 219 because 220 fails to stop or enable
luks crypt swap partition.

There was an unlogged error on shutdown after upgrade and
an infinite loop/wait on startup.

I had to use a rescue linux to mount and disable crypttab and fstab
entries before downgrading.

/etc/crypttab:
cswap /dev/sda3 /dev/urandom swap,cipher=aes-cbc-essiv:sha256,size=256

/etc/fstab:
/dev/mapper/cswap none swap defaults 0 0


Found nothing relevant about API breakage in v220 changelog.