MB-8135: Make sure 0 interprets as false
MB-8135: Make sure 0 interprets as false

bool('0') is interpret as true while bool(0) as false

Change-Id: I1d4a87f6cf5ae234847c7dc4f6f6e26ecfe1e47b

couchbase/couchbase-cli,couchbaselabs/couchbase-cli,couchbaselabs/couchbase-cli,couchbase/couchbase-cli,couchbaselabs/couchbase-cli