10133 smatch fixes for usr/src/cmd/fs.d
Reviewed by: Andy Stormont <astormont@racktopsystems.com>
Reviewed by: Gergő Doma <domag02@gmail.com>
Approved by: Robert Mustacchi <rm@joyent.com>

6706181 Make smbfs present real ACLs for ls -V, libsec