recommend <:alpha> for no underscore

TimToady · TimToady · commit bf45e2f980b8 · 2014-02-27T23:29:31.000-08:00
diff --git a/S05-regex.pod b/S05-regex.pod
@@ -2053,7 +2053,7 @@ X<alpha>X<< <alpha> >>
 Match a single alphabetic character, or an underscore.
 
 To match Unicode alphabetic characters without the underscore, use
-C<< <+alpha-[_]> >>.
+C<< <:alpha> >>.
 
 =item * digit
 X<digit>X<< <digit> >>
