Fixed some spaces [skip CI]
Fixed some spaces [skip CI]


Former-commit-id: 8d8cfc7092f66810246c29d2d622593c4786028b [formerly 8457b0e6305a74eb4fdafa065753de7a42b459ae]
Former-commit-id: 1278eda6112177d0e1b0e8b27b08cd7cd5d30395
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine