OpenLLDP with problems with binary data returned by lldptool.

[alvinstarr]

lldptool get-tlv -n -i enp3s0 -V 8
returns some data like:
IPv4: 10.1.0.1
Ifindex: 37
OID:
this causes ruby to kick out
Could not retrieve fact='lldp_neighbor_mngaddr_ipv4_enp2s0', resolution='': invalid byte sequence in UTF-8

I fixed this by adding " | cat -v" to the end of the lldptool command line.