Fixes #4591: More Fortran PROCEDURE fix to v1.8

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r31587 [[BR]]
ompi_setup_mpi_fortran.m4: disable mpi_f08 if PROCEDURE isn't supported

Per https://svn.open-mpi.org/trac/ompi/ticket/4590, if the Fortran
compiler doesn't support PROCEDURE in the way we want/need, disable
the mpi_f08 module.

Refs #4590

r31588 [[BR]]
Assume we always have fortran PROCEDURE support

Per #4590, we now ''require'' the PROCEDURE keyword support in Fortran
for the mpi_f08 module.  So if the Fortran compiler doesn't support
it, then we won't build the mpi_f08 module.

Fixes #4590
Fixes #4579: Move r31555 to v1.8 branch (Fix help message errors as)

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r31555 [[BR]]
Fix help message errors as reported by check-help-strings.pl script.

cmr=v1.8.2:reviewer=jsquyres