provide awk callback when findmnt is missing
do not turn none into --none

this allows to process a SuSE style crypttab without error:
+ run cryptsetup luksOpen --none /dev/sdb crypt1
--none: unknown option
+ error unable to map '/dev/sdb' to '/dev/mapper/crypt1'
remove archlinux stuff
remove .gitignore
add generated manpages to remove asciidoc dep
Makefile: remove arch linux hook targets
Makefile: do not delete/recreate manpages