Werk #5670: Handle history files from older EC versions, which have fewer columns.

KomponenteEvent Console
TitelHandle history files from older EC versions, which have fewer columns.
Datum2018-02-14 15:02:24
Check_MK EditionCheck_MK Raw Edition (CRE)
Check_MK Version1.4.0p25,1.5.0i3
LevelTrivial Change
KlasseBug Fix
KompatibilitätKompatibel - benötigt kein manuelles Eingreifen

History files written by older versions of the EC might contain fewer columns than a newer EC handles. This fix fills these missing columns with their default values, avoiding log messages like

unknown precedence '' in table eventconsolehistory

in cmc.log later.