Fixed typo in opal output message.
According to a report from Adam Moody, there is a compile error with
ROMIO and Lustre 2.4.0.  It has been solved upstream already; here's
the ticket:

    http://trac.mpich.org/projects/mpich/ticket/1973

And here's the commit that fixed it:

    http://trac.mpich.org/projects/mpich/changeset/a0c4278f1400a73eb63c5106e2bd3b1a6565ad5a

OMPI does not have the other code referred to in that git commit (in
ad_lustre_hints.c).

Thanks to Adam Moody for reporting the issue.

cmr=v1.7.4:reviewer=hjelmn:subject=Fix ROMIO compile error w/ Lustre 2.4
Fix harmless typo in error message.

Submitted by Paul Hargrove, reviewed by Jeff Squyres.

cmr=v1.7.5:reviewer=ompi-rm1.7
Add hpcchris username