Fix logging of topicName before creation (#54)
Fix logging of topicName before creation (#54)

Before:
  Serverless: INFO[serverless-offline-sns]: Creating topic: "[object Object]" for fn "mySnsFn"

After:
  Serverless: INFO[serverless-offline-sns]: Creating topic: "my-sns-topic" for fn "mySnsFn"
mj1618/serverless-offline-sns