Refer to Definition of Success near KEEP and UNDO

Author: lizmat

S04-control.pod

@@ -1558,8 +1558,8 @@ If exit phasers are running as a result of a stack unwind initiated by
 an exception, this information needs to be made available.  In any
 case, the information as to whether the block is being exited
 successfully or unsuccessfully needs to be available to decide
-whether to run C<KEEP> or C<UNDO> blocks.  How this information is
-made available is implementation dependent.
+whether to run C<KEEP> or C<UNDO> blocks (also see L</"Definition of Success">).
+How this information is made available is implementation dependent.
 
 An exception thrown from an C<ENTER> phaser will abort the C<ENTER>
 queue, but one thrown from a C<LEAVE> phaser will not.  The exceptions