4545. [func] Make dnstap-read output more functionally usable.

[RT #43642]

4544.	[func]		Add message/payload size to dnstap-read YAML output.
			[RT #43622]

bin/tests/system/dnstap/ydump.py

@@ -0,0 +1,17 @@
+#!/usr/bin/python
+
+try:
+    import yaml
+except:
+    print "I: No python yaml module, skipping"
+    exit(1)
+
+import subprocess
+import pprint
+import sys
+
+DNSTAP_READ=sys.argv[1]
+DATAFILE=sys.argv[2]
+
+f = subprocess.Popen([DNSTAP_READ, '-y', DATAFILE], stdout=subprocess.PIPE)
+pprint.pprint([l for l in yaml.load_all(f.stdout)])