they will match the prototypes in the [styictly-typed] MPI F90
bindings. Specifically, fix up MPI_COMM_SPAWN and
MPI_COMM_SPAWN_MULTIPLE so that the constants MPI_ARGV_NULL,
MPI_ERRCODES_IGNORE, and MPI_ARGVS_NULL can be used in the F90
bindings. Thanks to Michael Kluskens for pointing this out to us.
Some work still remains in the F90 bindings -- we are missing all
places where choice buffers can be of type CHARACTER.
This commit was SVN r9198.