[Exim] rwrite rule and S flag

Hello!

When I'v set this rewrite rule:
*@*     ${lookup{$0}lsearch{/usr/local/etc/exim/rewriting}{$value}}     S

I'v got a message: rewrite rule has the S flag but is not a regular
expression

*@* is not regular expression?

PS Exim 4.12

----
Sem.