revert: added back FormatUserName to whisper windows. appears as thou…

…gh the space was the issue but that is now being filtered out. We'll see if this creates any screaming.

Modules/WhisperEngine.lua

@@ -187,7 +187,7 @@ local function getWhisperWindowByUser(user, isBN, bnID)
 		end
 	else
 		user = string.gsub(user," ","") -- Drii: WoW build15050 whisper bug for x-realm server with space
-	--	user = FormatUserName(user);
+	    user = FormatUserName(user);
 	end
     if(not user or user == "") then
         -- if invalid user, then return nil;