EXT-7947 FIXED Added "language" parameter with LLUI::getLanguage() value into web site info.

Reviewed by Richard Nelson at https://codereview.productengine.com/secondlife/r/627/

--HG--
branch : product-engine

indra/newview/llfloaterbuyland.cpp

@@ -668,6 +668,7 @@ void LLFloaterBuyLandUI::updateWebSiteInfo()
 	keywordArgs.appendString(
 		"secureSessionId",
 		gAgent.getSecureSessionID().asString());
+	keywordArgs.appendString("language", LLUI::getLanguage());
 	keywordArgs.appendInt("billableArea", mPreflightAskBillableArea);
 	keywordArgs.appendInt("currencyBuy", mPreflightAskCurrencyBuy);