This adds support for json output on tc u32.
- The first patch is replacing with proper json functions in `u32_print_opt()`
- The second patch is fixing the json support in u32 `print_raw()`, `print_ipv4()`
  and `print_ipv6()`

The patches were tested with jq parser.

Wen Liang (2):
  tc: u32: add support for json output
  tc: u32: add json support in `print_raw`, `print_ipv4`, `print_ipv6`

 tc/f_u32.c | 204 ++++++++++++++++++++++++++++++++---------------------
 1 file changed, 125 insertions(+), 79 deletions(-)

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2.26.3