MAN: Document the re_expression needed to suport @-signs in the groupnames
In the 2.0 release we will be able to change the default regular
expression that will allow to consume @-signs in the name, but
since the 1.x branches need to stay backwards compatible, let's
only document the regex for now.
Reviewed-by: Fabiano Fidêncio <email@example.com>
Reviewed-by: Sumit Bose <firstname.lastname@example.org>