Add regression test for stat(2).
Add -m (--no-munge-auth) option to diodmount for testing.
Added LINUX EXTENSIONS and LINUX ENTRY POINTS sections, to be filled in.
Update man pages, adding new pages for diodctl and diodmount.
Remove diodmount -D option and just handle a mount of /diodctl specially. Handle diod -x use count such that a successful attach is required before exit. Handle errors in setfsuid/setfsgid (tlibc adds some minimal checks). Add --allow-private option to diodctl (and allowprivate config potion). Add --list-exports option to diodmount.