fix #527
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@ -149,7 +149,7 @@ Subscribes to one or several topics.
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- `topic` a [topic string](http://www.hivemq.com/blog/mqtt-essentials-part-5-mqtt-topics-best-practices)
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- `qos` QoS subscription level, default 0
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- `table` array of 'topic, qos' pairs to subscribe to
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- `function(client, topic, message)` optional callback fired when message received
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- `function(client)` optional callback fired when subscription(s) succeeded
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#### Returns
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`true` on success, `false` otherwise
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