Old changeDictionaryDict format in externalSolarLoad tutorial
In tutorial heatTransfer/chtMultiRegionFoam/externalSolarLoad, changeDictionaryDicts are written in the old format. No need of dictionaryReplacement sub-dict after commit 685afaafbf8ce9fe0d43bb7b6d40eb712531b617 "changeDictionary: Simplified by removing the need for the superfluous dictionaryReplacement sub-dictionary."