Fixing initialization of variable 'action_spec' in abstract_engine.py
Fixing initialization of variable 'action_spec' in abstract_engine.py

Change-Id: I86a86feabb090cda488c21e5ac421e1760a5225d

StackStorm/mistral,dennybaa/mistral,openstack/mistral,StackStorm/mistral,dennybaa/mistral,openstack/mistral,TimurNurlygayanov/mistral