Check_MK Werk 4980: mssql_counters.file_sizes: Added readable titles of related metrics

ID: 4980 Title: mssql_counters.file_sizes: Added readable titles of related metrics Component: Checks & agents Level: 1 Class: Bug fix Version: 1.5.0i1 Previously the titles of the metrics 'data_files', 'log_files_used' and 'log_files' were generated automatically and were not readable. Now they have readable titles.