Comment out initgroups from example nsswitch.conf (Bug 25146)
In commit
4b7c74179c8928d971d370e1137d202f891a4cf5 the nsswitch.conf
file was harmonized with downstream distributions, but this change
included adding "initgroups: files". We should not add initgroups by
default, we can have it, but it should be commented out to allow it
to inherit the settings for group. The problem is principally that
downstream authconfig won't update initgroups and it will get out of
sync with the setting for group.