Update bare exceptions to specify Exception.

This will keep us from accidentally catching program-exiting exceptions
like KeyboardInterupt and SystemExit.

lib/ansible/modules/cloud/amazon/ecs_ecr.py

@@ -306,7 +306,7 @@ def run(ecr, params, verbosity):
                         ecr.set_repository_policy(
                             registry_id, name, policy_text, force_set_policy)
                         result['changed'] = True
-                except:
+                except Exception:
                     # Some failure w/ the policy. It's helpful to know what the
                     # policy is.
                     result['policy'] = policy_text