Normalize object class definition for dNSDomain (ITS#3362)

[vchevalier@linagora.com]

Full_Name: Victor CHEVALIER
Version: 2.2.17
OS: Linux
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (194.98.7.155)


The definition of the object class 'dNSDomain' in the schema file
'cosine.schema' is invalid : the SUP oid contains quotes ("'domain'"). Must be
:

objectclass ( 0.9.2342.19200300.100.4.15 NAME 'dNSDomain'
	SUP domain STRUCTURAL
	MAY ( ARecord $ MDRecord $ MXRecord $ NSRecord $
		SOARecord $ CNAMERecord )
	)