update system tests so validation won't fail when using IANA key

- all tests with "recursion yes" now also specify "dnssec-validation yes",
  and all tests with "recursion no" also specify "dnssec-validation no".
  this must be maintained in all new tests, or else validation will fail
  when we use local root zones for testing.
- clean.sh has been modified where necessary to remove managed-keys.bind
  and viewname.mkeys files.

bin/tests/system/fetchlimit/clean.sh

@@ -14,3 +14,4 @@ rm -f dig.out*
 rm -f ans4/norespond
 rm -f ns3/named.stats ns3/named_dump.db
 rm -f burst.input.*
+rm -f ns*/managed-keys.bind*

bin/tests/system/fetchlimit/ns1/named.conf.in

@@ -18,6 +18,7 @@ options {
 	listen-on { 10.53.0.1; };
 	listen-on-v6 { none; };
 	recursion no;
+	dnssec-validation no;
 	notify yes;
 };
 

bin/tests/system/fetchlimit/ns2/named.conf.in

@@ -18,6 +18,7 @@ options {
 	listen-on { 10.53.0.2; };
 	listen-on-v6 { none; };
 	recursion no;
+	dnssec-validation no;
 	notify yes;
 };
 

bin/tests/system/fetchlimit/ns3/named1.conf.in

@@ -21,6 +21,7 @@ options {
 	listen-on { 10.53.0.3; };
 	listen-on-v6 { none; };
 	recursion yes;
+	dnssec-validation yes;
 	notify yes;
 	fetches-per-server 400;
 };

bin/tests/system/fetchlimit/ns3/named2.conf.in

@@ -19,6 +19,7 @@ options {
 	listen-on { 10.53.0.3; };
 	listen-on-v6 { none; };
 	recursion yes;
+	dnssec-validation yes;
 	notify yes;
 	fetches-per-zone 40;
 };

bin/tests/system/fetchlimit/ns3/named3.conf.in

@@ -19,6 +19,7 @@ options {
 	listen-on { 10.53.0.3; };
 	listen-on-v6 { none; };
 	recursion yes;
+	dnssec-validation yes;
 	notify yes;
 	recursive-clients 400;
 };