MFC revision 1.90, log:

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 i
nspired by a patch from Erik)
Pointyhat to: me
Reviewed by: stable@
Approved by: re (bmah), imp (mentor)