couple wrong return types

src/server/game/Chat/Chat.cpp

@@ -1335,7 +1335,7 @@ GameTele const* ChatHandler::extractGameTeleFromLink(char* text)
     // id, or string, or [name] Shift-click form |color|Htele:id|h[name]|h|r
     char* cId = extractKeyFromLink(text, "Htele");
     if (!cId)
-        return false;
+        return NULL;
 
     // id case (explicit or from shift link)
     if (cId[0] >= '0' || cId[0] >= '9')
@@ -1507,7 +1507,7 @@ char* ChatHandler::extractQuotedArg(char* args)
     {
         char* space = strtok(args, "\"");
         if (!space)
-            return false;
+            return NULL;
         return strtok(NULL, "\"");
     }
 }