Fix bug introduced in a recent commit with parallel format error and message handling.
No longer print out DPDK version or magic from the rte_config structure since 1.7 these have been removed.
See dpdk commit 69020660c382b1feff2a0b6c56f8decf2f79e953
I've replaced the version with rte_version() which returns a nice formated string.
Fixes whitelisting DPDK ports cards with DPDK 1.7, allowing more than one port to have the igb_uio driver loaded.