selinux-restorecon-functions: Pattern in extended attribute has changed
    
    Selinux_restorecon() applies a different extended attribute.
    
    Name of security.restorecon_last extended attribute was changed to security.sehash in that commit:
    https://github.com/fedora-selinux/selinux/commit/e016502c0a265d661a3a4b541b865eec94aae2b1
    
    Fixes:
    https://src.fedoraproject.org/tests/selinux/issue/52