pfsense/pfsense — pull request #1040 by fichtner (2014-03-27 15:10:35+00:00)
Title: etc/group: admin group causes pw(1) error

I'm not entirely sure if deletion or reverting to id 101 is the better
option. Feel free to discuss.
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The issue was introduced in commit 128f6a3e in 2005: the `admin'
user was mapped to `wheel' and group `admin' was set to gid 0,
which clashes with the `wheel' group:

php: rc.bootup: The command '/usr/sbin/pw userdel -n 'admin''
returned exit code '1', the output was 'pw: entry inconsistent
pw: gr_copy(): Invalid argument'

Delete the `admin' group since it is no longer used.