Restored OQ_CONFIG_FILE_VAR [skip CI]
Restored OQ_CONFIG_FILE_VAR [skip CI]


Former-commit-id: 3be2c6add5c547b525b9988e2c75d49dfab6ce67 [formerly ca45508332e63d0e1ccc99e216a3015868b2bcf8]
Former-commit-id: 9a120e2759c9e26543ab9ceac908a5205e0cf56d
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine