Fixed docstring [skip CI]
Fixed docstring [skip CI]


Former-commit-id: 61a21ff4d996a8370d29ec25d8485e7141353ca3 [formerly 8b8c612b1341d8712838671ffddd35650d340657]
Former-commit-id: f0ea4dc967b2416c4249089179aedca346d59a74
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine