Bug#590489: user-setup: The UID range of user accounts is extended to 1000-59999

[Kazuhiro NISHIYAMA <zn@mbf.nifty.com>]

Package: user-setup
Version: 1.31
Severity: normal

The mail 'Policy 3.9.0.0 released'
http://lists.debian.org/debian-devel-announce/2010/06/msg00005.html
says:
>     9.2.2
>          The UID range of user accounts is extended to 1000-59999.

but is_system_user() in /usr/lib/user-setup/functions.sh checks
any uid from 1000 to 29999.