[JIRA] (OVIRT-1094) [gerrit hooks] Add verify grade (-1) to check product hook

[gerrit hooks] Add verify grade (-1) to check product hook ---------------------------------------------------------- Key: OVIRT-1094 URL: https://ovirt-jira.atlassian.net/browse/OVIRT-1094 Project: oVirt - virtualization made easy Issue Type: Task Reporter: Shlomo Ben David Assignee: Shlomo Ben David Add verify grade (-1) for wrong product