[Varnish] #1000: server.ip can`t beused as a string?

[Varnish]

#1000: server.ip can`t beused as a string?
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 Reporter:  xrow   |        Type:  defect  
   Status:  new    |    Priority:  normal  
Milestone:         |   Component:  varnishd
  Version:  3.0.0  |    Severity:  normal  
 Keywords:         |  
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Comment(by scoof):

 You can work around this by doing: set resp.http.X-Cache = "" + server.ip
 + ":HIT:" + obj.hits;

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Ticket URL: <http://www.varnish-cache.org/trac/ticket/1000#comment:1>
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