The format for erspan/erspan6 output is not valid JSON, as on version 2 a
valueless key was presented. The direction should be value and erspan_dir
should be the key.
Fixes: 289763626721 ("erspan: add erspan version II support") Cc: u9012063@gmail.com Reported-by: Christian Pössinger <christian@poessinger.com> Signed-off-by: Christian Pössinger <christian@poessinger.com> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>