Bug #1531349: right <-> left glitch in __rop__ description.

Doc/ref/ref3.tex

@@ -1940,7 +1940,7 @@ complicated).
 
 \note{If the right operand's type is a subclass of the left operand's
       type and that subclass provides the reflected method for the
-      operation, this method will be called before the right operand's
+      operation, this method will be called before the left operand's
       non-reflected method.  This behavior allows subclasses to
       override their ancestors' operations.}
 \end{methoddesc}