Add description to structuralObjectClass

servers/slapd/schema/core.schema

@@ -77,8 +77,9 @@ attributetype ( 2.5.21.8 NAME 'matchingRuleUse'
 	EQUALITY objectIdentifierFirstComponentMatch
 	SYNTAX 1.3.6.1.4.1.1466.115.121.1.31 USAGE directoryOperation )
 
-# From X.500(97?)
+# From X.500(93)
 attributetype ( 2.5.21.9 NAME 'structuralObjectClass'
+	DESC 'X.500(93) structural object class'
 	EQUALITY objectIdentifierMatch
 	SYNTAX 1.3.6.1.4.1.1466.115.121.1.38
 	NO-USER-MODIFICATION SINGLE-VALUE USAGE directoryOperation )