tests/engine_test:
tests/engine_test:

Pyflakes cleanup.


Former-commit-id: 223ba10d1b6158f49c4efead0107b0426cff2f06 [formerly c141e087c3544d1650c934106c01f5f65787b732]
Former-commit-id: 0080c70d59b06f6498a0911e771b4f010ec225c9
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine