Text only: MPI Case Style

[scrasmussen]

TYPE: text only, no impact

KEYWORDS: formatting, MPI

SOURCE: Soren Rasmussen, NCAR

DESCRIPTION OF CHANGES: Formatting MPI function calls to standard MPI style of MPI_Foo_bar(). This is only changing the capitalization of letters so it is a text only change and shouldn't touch anything else.

TESTS CONDUCTED: Built and ran Croton just to double check the text-only change didn't accidentally affect something else.

NOTE: tried switching from mpi to mpi_f08 but because some of libraries and the models we couple with use the older style, meaning all the MPI types are integers, it currently won't work out.

Checklist

• Closes issue #xxxx (An issue must exist or be created to be closed. The issue describes and documents the problem and general solution, the PR describes the technical details of the solution.)
• Tests added (unit tests and/or regression/integration tests)
• Backwards compatible
• Requires new files? If so, how to generate them.
• Documentation included
• Short description in the Development section of NEWS.md