LDP: Add a test capture file

LDP: Add a test capture file

This capture file triggered a buffer over-read with the 4.9.2 release
fixed in the 4.9.3 release.

With the new GET_ macros, the problem no longer exists.
Thus no fix needed.

The pcap file was updated to avoid pcap_loop() error messages.

Update the output of the test accordingly.

Partial update from aa5c6b710dfd8020d2c908d6b3bd41f1da719b3b
in 4.9 branch.