set LDAPURLDesc lud_scope to LDAP_SCOPE_DEFAULT if set to LDAP_SCOPE_BASE, so...

set LDAPURLDesc lud_scope to LDAP_SCOPE_DEFAULT if set to LDAP_SCOPE_BASE, so no trailing '??base' is added to referrals; little more cleanup

tests/data/relay.out

@@ -2490,7 +2490,7 @@ description: Just added as ldap://localhost.localdomain:389/ou=Referrals,o=Bei
  spiel,c=DE
 description: ...and modified as ldap://ldap.example.com:389/ou=Referrals,o=Bei
  spiel,c=DE
-ref: ldap://ldap.example.com:389/ou=Referrals,o=Beispiel,c=DE??base
+ref: ldap://ldap.example.com:389/ou=Referrals,o=Beispiel,c=DE
 
 # 	base="o=Esempio,c=IT"...
 dn: ou=Referrals,o=Esempio,c=IT
@@ -2501,7 +2501,7 @@ description: Just added as ldap://localhost.localdomain:389/ou=Referrals,o=Bei
  spiel,c=DE
 description: ...and modified as ldap://ldap.example.com:389/ou=Referrals,o=Bei
  spiel,c=DE
-ref: ldap://ldap.example.com:389/ou=Referrals,o=Beispiel,c=DE??base
+ref: ldap://ldap.example.com:389/ou=Referrals,o=Beispiel,c=DE
 
 # searching filter="(seeAlso=cn=all staff,ou=Groups,o=Example,c=US)"
 # 	attrs="seeAlso"

tests/scripts/test030-relay

@@ -29,25 +29,40 @@ if test "x$RELAYS" = "x" ; then
 	if test $BACKRELAY = relayno ; then 
 		echo "relay backend not available, test skipped"
 	else
-		RELAYS="${RELAYS}relay "
+		if test "x$RELAYS" != "x" ; then
+			RELAYS="${RELAYS} "
+		fi
+		RELAYS="${RELAYS}relay"
 	fi
 
 	# back-ldap
 	if test $BACKLDAP = ldapno ; then 
 		echo "ldap backend not available, test skipped"
 	else
-		RELAYS="${RELAYS}ldap "
+		if test "x$RELAYS" != "x" ; then
+			RELAYS="${RELAYS} "
+		fi
+		RELAYS="${RELAYS}ldap"
 	fi
 
 	# back-meta
 	if test $BACKMETA = metano ; then 
 		echo "meta backend not available, test skipped"
 	else
-		RELAYS="${RELAYS}meta "
+		if test "x$RELAYS" != "x" ; then
+			RELAYS="${RELAYS} "
+		fi
+		RELAYS="${RELAYS}meta"
 	fi 
 fi
 
-echo "Using $RELAYS..."
+if test "x$RELAYS" = "x" ; then
+	echo "no relaying capable backend is available"
+	echo ">>>>> Test succeeded"
+	exit 0
+fi
+
+echo "Testing virtual naming context mapping with backend(s) $RELAYS..."
 echo ""
 
 first=1