Why do I get errors from mountd (can't change attributes for ... bad exports list line ...) ?

[Yuri]

Chuck Swiger wrote:
> For one thing, the second line should be:
>
>     /usr/local -maproot=root,ro -network=10.0.0 -mask=255.0.0.0
>
> For another, you are only supposed to export a given filesystem once; 
> the notion of exporting it multiple times means you are changing the 
> values of the previous export, and that's not supported.  See:
>
>   http://www.freebsd.org/cgi/query-pr.cgi?pr=109911
>

The workaround suggested in this PR eliminates the messages, but causes 
client to get "Permission denied message"
Because the modified mount points are for different nets.

Yuri