My previous commit made it impossible to export / over NFS; this small change fixes this.
My previous commit made it impossible to export / over NFS; this small
change fixes this.

Reported by:	Lin Jui-Nan Eric < ericlin dot jnlin at gmail dot com >
Submitted by:	Erik Trulsson < ertr1013 at student dot uu dot se > (commit is inspired by a patch from Erik)
Pointyhat to:	me
Reviewed by:	stable@
Approved by:	imp (mentor)
MFC after:	3 days

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