S05 typo

S05-regex.pod

@@ -2679,7 +2679,7 @@ a token declaration such as
 considers its "longest token" to be just the left square bracket, because
 the first thing the C<expr> rule will do is traverse optional whitespace.
 As an exception to this, and in order to promote readability, a special
-exception is made for alternations inside rules.  If an alteration in a
+exception is made for alternations inside rules.  If an alternation in a
 rule, or any other context where C<:sigspace> is active, has whitespace
 before a group of alternations, then any leading whitespace on the
 alternatives is ignored.  That is, C<rule { [ a | b ] }> is treated as