LJ::text_convert — convert old entries/comments to UTF-8 using user's default encoding.
LJ::text_convert(dbs, text, u, error
dbs. optional. Deprecated; a master/slave set of database handles.
text. old possibly non-ASCII text to convert
u. user hashref of the journal's owner
error. ref to a scalar variable which is set to 1 on error (when user has no default encoding defined, but text needs to be translated).