Checkmk Werk 10287: Service Discovery: fix re-enabling services which were disabled in 1.4.0

ID: 10287 Title: Service Discovery: fix re-enabling services which were disabled in 1.4.0 Component: WATO Level: 1 Class: Bug fix Version: 1.7.0i1 In 1.4.0 disabled services were not quoted in the rules configuration file. Later versions quoted these services. Due to this the unquoted services were not found when re-enabling them via the GUI in version 1.6 and later. This werk fixes this behaviour.