[Varnish] #1572: varnishd -C should return correct exit value

[Varnish]

#1572: varnishd -C should return correct exit value
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 Reporter:  zviratko  |       Type:  defect
   Status:  new       |   Priority:  normal
Milestone:            |  Component:  varnishd
  Version:  4.0.1     |   Severity:  normal
 Keywords:            |
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 varnishd -C should return correct exit value

 1) vcc_err_unref = on and there are unreferenced object
 varnishd -C returns with 2 but prints: "Running VCC-compiler failed, exit
 1"

 2) vcc_err_unref=off and there are unreferenced objects
 varnishd -C returns with 0, should return with 1

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Ticket URL: <https://www.varnish-cache.org/trac/ticket/1572>
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