Fix fortran compiler config issues on mac

[clevelam]

Description of changes

• Fix fortran compiler config issues on mac

Status

• Reference:
  • Pre-Merge Code Review
  • CDash Status
• Checks
  • Travis CI checks pass
  • Code coverage does not decrease
  • Valgrind test passes
  • Toss3 checks pass
  • Trinitite checks pass
  • Code reviewed/approved, sufficient DbC checks, testing, documentation

[KineticTheory]

@clevelam I want to test this under Windows before we merge. The semicolon at the end of the command might be an issue. The other two changes look good.

[codecov]

Codecov Report

Merging #554 into develop will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           develop    #554   +/-   ##
=======================================
  Coverage     93.3%   93.3%           
=======================================
  Files          377     377           
  Lines        17677   17677           
=======================================
  Hits         16497   16497           
  Misses        1180    1180