Affected releases:
- cesm1_3_beta11 (and earlier): no problem
- cesm1_3_beta12: segfault, CASEROOT is not created
- cesm1_3_beta{13,14,15,16,17}: segfault, CASEROOT is created, README.case and README.science_support files appear in CASEROOT
- cesm1_3_beta18: no problem
- cesm1_4_beta01: no problem