Fixed utils_test.py
Fixed utils_test.py


Former-commit-id: 16a6a6a2b03b5e763e024baa74d6c09fa7b5c53c [formerly f29c897f97ee16e4fed9ae66a7262fd91b22a361]
Former-commit-id: d4f697f8f248abe964f52fd99aa582a10bcb54ea
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine