Optional - called when the layer is about to be removed.
-=item $obj->UTF8($bellowFlag,[$fh])
+=item $obj->UTF8($belowFlag,[$fh])
Optional - if present it will be called immediately after PUSHED has
returned. It should return a true value if the layer expects data to be
If not present or if it returns false, then the stream is left with
the UTF-8 flag clear.
-The I<$bellowFlag> argument will be true if there is a layer below
+The I<$belowFlag> argument will be true if there is a layer below
and that layer was expecting UTF-8.
=item $obj->OPEN($path,$mode,[$fh])