-=item Ambiguous use of 's//le...' resolved as 's// le...'; Rewrite as 's//el' if you meant 'use locale rules and evaluate rhs as an expression'. In Perl 5.16, it will be resolved the other way
-
-(W deprecated, ambiguous) You wrote a pattern match with substitution
-immediately followed by "le". In Perl 5.14 and earlier, this is
-resolved as meaning to take the result of the substitution, and see if
-it is stringwise less-than-or-equal-to what follows in the expression.
-Having the "le" immediately following a pattern is deprecated behavior,
-so in Perl 5.16, this expression will be resolved as meaning to do the
-pattern match using the rules of the current locale, and evaluate the
-rhs as an expression when doing the substitution. In 5.14, if you want
-the latter interpretation, you can simply write "el" instead.
-