pep8 fixes for the CLI loader
pep8 fixes for the CLI loader


Former-commit-id: 6d552e79f2145942ffd04b669203287c47176b28 [formerly 8efa69cbef90b038964fa68e232561d6657af1f2] [formerly 8efa69cbef90b038964fa68e232561d6657af1f2 [formerly 8702be7fb7a5f83e263ca8dc4adf822126e855c2]]
Former-commit-id: ae36e1550aaf4e81b1b5819e442195d93c18b2e0
Former-commit-id: c0f58609277f2d7fe3525c6e851cf61b0f13096f
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine