Check_MK Werk 5353: citrix_sessions: fixes a case where no session number was returned

ID: 5353 Title: citrix_sessions: fixes a case where no session number was returned Component: Checks & agents Level: 1 Class: Bug fix Version: 1.5.0i1 In some circumstances citrix_sessions did not return values for XenServers. This werk fixes this problem in the citrix_xenapp PowerShell script so that always a valid session number is returned.