Fix issue when varnish is not automatically started in Redhat Linux 5

The issue is described here https://www.varnish-cache.org/trac/ticket/1072
The change is already applied to https://github.com/varnish/Varnish-Cache/commit/ee439631b413cc5505e384c233ca36930cd33a70#bin/varnishd/mgt/mgt_vcc.c 
This is a retrofit of that change into the 3.0 branch
Sorry, I should have pull that from the 3.0 branch instead of the master branch