Small refactoring of sample_ruptures
Small refactoring of sample_ruptures


Former-commit-id: 9c335cab91e0aa5f3e34b20324f7e711f791afbe [formerly 02f3d1b54197a2b080564490d0d6b52c2efdb8ab]
Former-commit-id: c359ac36a449aeb8689e8bc651e3cc547c9359f3
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine