message: Fix a Python error in the corporation screen
diff: @@ -394,10 +394,10 @@ class CvCorporationScreen:
  if (iLinkCorporation > 1):
  szButtonName = self.TECH_REQUIRED_BUTTON_CORPORATION
  - screen.addDDSGFC(szButtonName, gc.getTechInfo(iEconomicsTech).getButton(), self.X_REQUIREMENTS_AREA + 20 + self.BUTTON_SIZE + 15, self.Y_REQUIREMENTS_AREA + 10, self.BUTTON_SIZE, self.BUTTON_SIZE, WidgetTypes.WIDGET_TECH_TREE, iEconomicsTech, -1)
  + screen.addDDSGFC(szButtonName, gc.getTechInfo(iEconomics).getButton(), self.X_REQUIREMENTS_AREA + 20 + self.BUTTON_SIZE + 15, self.Y_REQUIREMENTS_AREA + 10, self.BUTTON_SIZE, self.BUTTON_SIZE, WidgetTypes.WIDGET_TECH_TREE, iEconomics, -1)
  szList = u""
  - if teamCiv.isHasTech(iEconomicsTech):
  + if teamCiv.isHasTech(iEconomics):
  szList += u"%c" % (CyGame().getSymbolID(FontSymbols.SUCCESS_CHAR))
  else:
  szList += u"%c" % (CyGame().getSymbolID(FontSymbols.FAILURE_CHAR))
  