Updated comments
Updated comments


Former-commit-id: 11a5e9ab3328662949efb079c2d1053965af278b [formerly ec31dc8ba8781b5d1699d7323ff51d410682a20c]
Former-commit-id: da662dde1f122478ed7854e40e1e86b7373daa09
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine