Checkmk Werk 11533: fileinfo.groups: fix broken perfometer when no files are found

ID: 11533 Title: fileinfo.groups: fix broken perfometer when no files are found Component: Checks & agents Level: 1 Class: Bug fix Version: 2.0.0i2 The fileinfo.groups check delivers fewer metrics when there are no files found by the agent (count of files and size of all files). This caused the perfometer of this check to break, which resulted in an error message displayed on the GUI. This has been fixed.