Fix quest log button block status

client/adventureMap/AdventureMapShortcuts.cpp

@@ -397,7 +397,7 @@ void AdventureMapShortcuts::moveHeroDirectional(const Point & direction)
 
 bool AdventureMapShortcuts::optionCanViewQuests()
 {
-	return optionInMapView() && CGI->mh->getMap()->quests.empty();
+	return optionInMapView() && !CGI->mh->getMap()->quests.empty();
 }
 
 bool AdventureMapShortcuts::optionCanToggleLevel()