Fix utils.py unittest
Fix utils.py unittest

Reviewed-by: imsnah

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