tests/utils_stats_test:
tests/utils_stats_test:

Updated test keys to use the correct convention for failures;
all tests pass now.


Former-commit-id: 422c593072b1ae5327e3891165e35490898bf5e2
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine