maximum list name size not properly reported when exceeded
sympa appears to have a maximum list name size of 50 characters. see: https://sourcesup.cru.fr/tracker/?func=detail&group_id=23&aid=6162&atid=167
however, when someone tries to request a list with more than 50 characters in the list name, they get this confusing error:
"INTERNAL SERVER ERROR (create_list) - Failed creating list ''. The list might already exist or listname might include forbidden characters. "
discovered this via https://user.riseup.net/ticket/268367
(from redmine: created on 2012-08-29)