misc: fix typo in set-ipfix-exporter CLI short_help
misc: fix typo in set-ipfix-exporter CLI short_help

Type: fix
Change-Id: Id6687780b9a740323bd2eef58447864e70dc0235
Signed-off-by: Ignas Bacius <88c705eb5e7be887b0065c637e914099f099a58b@noia.network>

chrisy/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,FDio/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,FDio/vpp,FDio/vpp