$newstring = DBI::neat_list(\@list, maxlength, delim)
Converts each element of a list with DBI::neat and returns it 
as a string.
- \@list
 A reference to the list to convert.
- maxlength
 The length at which to truncate the string with
"...".  
- delim
 The delimiter to use between list elements in the new string. 
The default is ", ".