hostfs: Report append flag in ->show_options()
hostfs: Report append flag in ->show_options()

hostfs has an "append" mount option. Report it.

Signed-off-by: Richard Weinberger <320bca71fc381a4a025636043ca86e734e31cf8b@nod.at>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs