Fix a broken format string
Fix a broken format string

This patch fixes a broken format string. It's expecting 3 parameters, but only
gets 2. This change will add the missing parameter. This is a forward-port
of the fix in Ganeti 1.2

Reviewed-by: imsnah


mbakke/ganeti,andir/ganeti,ganeti/ganeti,andir/ganeti,apyrgio/snf-ganeti,ganeti/ganeti,bitemyapp/ganeti,ganeti/ganeti,yiannist/ganeti,leshchevds/ganeti,dimara/ganeti,grnet/snf-ganeti,ganeti-github-testing/ganeti-test-1,apyrgio/ganeti,apyrgio/snf-ganeti,onponomarev/ganeti,bitemyapp/ganeti,yiannist/ganeti,ganeti-github-testing/ganeti-test-1,mbakke/ganeti,andir/ganeti,grnet/snf-ganeti,dimara/ganeti,leshchevds/ganeti,mbakke/ganeti,yiannist/ganeti,apyrgio/ganeti,leshchevds/ganeti,onponomarev/ganeti