Description of problem:
Canna claims explicit uid 39 without listing Canna user within oficial uidgid file. This could cause troubles when uid 39 is already in use on the system. Is there any need for that explicit uid 39? If so, it should have been requested to be added into uidgid file in setup package(no such requested filled in bugzilla so far).

How reproducible:
Always

Steps to Reproduce:
1. See /usr/share/doc/setup-*/uidgid
  
Actual results:
No Canna user within uidgid file

Expected results:
Canna user within uidgid file OR Canna user WITHOUT explicit uid request.

Additional info:
Just for your info, I'm setup package maintainer and there is very few number of uid/gids left under 100. Recently was requested to add audio and video group to Fedora, I have chosen two gid numbers - and one of those was 39 ... so without my initiative and google search for possible usage of this uid/gid it would have been taken without any warning and canna will be no longer running correctly. Please let me know if this explicit requirement is really needed (and canna user should be added to uidgid file - or if that uidgid number could be used (and explicit number uid 39 could be removed from canna))