PROBLEM:        (HPXQ36487/QAR 46954)   (Patch ID: OSF375-350240)
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If the "showmount -e host" command does not receive the requested export
list from the specified host within 25 seconds, it will issue the
following error message:

    Can't do Exports rpc: RPC: Timed out

The most likely cause for receiving this error is if the specified host
system is running a 3rd party product that provides its own file system
interface _AND_ if accessing that file system is slow (perhaps on the
first reference to the file system) _AND_ if a sufficient number of such
file systems are exported so that 'mountd' takes a long time to read and
verify the list of exported file systems.

Generally speaking, 'mountd' is able to read and verify its export list
in less than a second or a few seconds worst case for a very large list.
However, if conditions do exist that would cause 'showmount' to issue
the above error, then this version of 'showmount' provides options that
will allow the time out value to be changed.

    -t nnn specifies the time out value in seconds.

    -T specifies an infinite time out.