Avoid warning no XML exporter for event_loss
Avoid warning no XML exporter for event_loss


Former-commit-id: 85408059f56636c9ee6f6a77f91c22775b328dd5 [formerly 85408059f56636c9ee6f6a77f91c22775b328dd5 [formerly 268c65c3361fa09d1aae453a0f1d5272d3d51c45]]
Former-commit-id: 14130af25d2163afdb63c19ab1d6191db811000c
Former-commit-id: 76e81c0da24bad00a87e37867cba93f665e0ba89
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine