src: doc: Final polish for current round

- Ensure all functions that return something have a \returns
- Demote more checksum functions to their own groups
  (reduces number of functions on main pages)
- Clarify wording where appropriate
- Add \sa (see also) where appropriate
- Fix documented function name for nfq_tcp_get_hdr
  (no other mismatches noticed, but there may be some)
- Add warnings regarding changing length of tcp packet
- Make group names unique within libnetfilter_queue
  (else man pages would be overwritten)

Signed-off-by: Duncan Roe <duncan_roe@optusnet.com.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

0 files changed, 0 insertions, 0 deletions