bundles/icinga2: handle dig status messages in check_spam_blocklist

bundles/icinga2/files/check_spam_blocklist

@@ -50,12 +50,18 @@ def check_list(ip_list, blocklist, warn_ips):
             dns_name
         ]).decode().splitlines()
         for item in result:
+            if line.startswith(';;'):
+                msgs.append('{} - {}'.format(
+                    blocklist,
+                    item,
+                ))
+            else:
                 msgs.append('{} listed in {} as {}'.format(
                     ip,
                     blocklist,
                     item,
                 ))
-            if item in warn_ips and returncode < 2:
+            if (item in warn_ips or line.startswith(';;')) and returncode < 2:
                 returncode = 1
             else:
                 returncode = 2