fix fpc 2.2.4 type related warning with unclear origin
[Desktop Entry]Type=ApplicationVersion=1.0Encoding=UTF-8Name=HedgewarsGenericName=Fighting HedgehogsGenericName[tr]=Worms Benzeri Strateji OyunuGenericName[ru]=Битвы ежейIcon=hedgewars.pngExec=hedgewarsTerminal=falseStartupNotify=falseCategories=Application;Game;StrategyGame;