fix tinyxml2 namespaces' ending comment

Signed-off-by: Sergey Smolov <smolov@ispras.ru>

tinyxml2.h

@@ -2374,7 +2374,7 @@ private:
 };
 
 
-}	// tinyxml2
+} // tinyxml2
 
 #if defined(_MSC_VER)
 #   pragma warning(pop)