Bug#1767: cern-httpd installation

[Bill Hogan <bhogan@rahul.net>]

  Package: cern-httpd
  Version: 3.0-4

  Bug: installation creates group named `--quiet'.

	# diff group group~
	2d1
	< --quiet::101:

    I believe the intention here is to create a group named `www-data'.

     BH