[master] skip unnecesary also-notify data

3713.	[bug]		Save memory by not storing "also-notify" addresses
			in zone objects that are configured not to send
			notify requests. [RT #35195]

bin/tests/system/checkconf/notify.conf

@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2014  Internet Systems Consortium, Inc. ("ISC")
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+view one {
+	notify master-only;
+
+        # also-notify inconsistent with master-only notify option
+	zone "slave" {
+		type slave;
+		masters { 1.2.3.4; };
+		also-notify { 5.6.7.8; };
+	};
+
+        # OK
+	zone "master" {
+		type master;
+		file "filename";
+		also-notify { 5.6.7.8; };
+	};
+};
+
+view two {
+	notify no;
+
+        # also-notify inconsistent with notify option at the view level
+	zone "slave" {
+		type slave;
+		masters { 1.2.3.4; };
+		also-notify { 5.6.7.8; };
+	};
+
+        # OK
+	zone "master" {
+		type master;
+		file "filename";
+		notify yes;
+		also-notify { 5.6.7.8; };
+	};
+};
+
+view three {
+        # also-notify inconsistent with notify option at the zone level
+	zone "slave" {
+		type slave;
+		masters { 1.2.3.4; };
+		notify no;
+		also-notify { 5.6.7.8; };
+	};
+
+        # OK
+	zone "master" {
+		type master;
+		file "filename";
+		also-notify { 5.6.7.8; };
+	};
+};
+
+view four {
+        also-notify { 5.6.7.8; };
+
+        # OK
+	zone "slave" {
+		type slave;
+		masters { 1.2.3.4; };
+		notify master-only;
+	};
+
+        # OK
+	zone "master" {
+		type master;
+		file "filename";
+                notify no;
+	};
+};