It was pointed that the exportfs man page talks about
the wrong file. In 2.6 kernels the export information
is now kept in /var/lib/nfs/etab not /var/lib/nfs/xtab.

This patch basically does a 's/xtab/etab' and is relative
to the to the Fedora git tree

git://git.infradead.org/~steved/nfs-utils.fedora

steved.