liburcu: minor cleanup to improve readability
Added support for libnftnl

Signed-off-by: Lad, Prabhakar <Prabhakar.Lad@racelogic.co.uk>
Added support for libnfnetlink

Signed-off-by: Lad, Prabhakar <Prabhakar.Lad@racelogic.co.uk>
Added support for libmnl

Signed-off-by: Lad, Prabhakar <Prabhakar.Lad@racelogic.co.uk>
Added support for libnetfilter_acct

Signed-off-by: Lad, Prabhakar <Prabhakar.Lad@racelogic.co.uk>
Added support for libnetfilter_log

Signed-off-by: Lad, Prabhakar <Prabhakar.Lad@racelogic.co.uk>
Added support for libnetfilter_queue

Signed-off-by: Lad, Prabhakar <Prabhakar.Lad@racelogic.co.uk>
Added support for libnetfilter_conntrack

Signed-off-by: Lad, Prabhakar <Prabhakar.Lad@racelogic.co.uk>
Added support for libnetfilter_cttimeout

Signed-off-by: Lad, Prabhakar <Prabhakar.Lad@racelogic.co.uk>
Added support for libnetfilter_cthelper

Signed-off-by: Lad, Prabhakar <Prabhakar.Lad@racelogic.co.uk>
Added support for nfacct

Signed-off-by: Lad, Prabhakar <Prabhakar.Lad@racelogic.co.uk>
Added support for ipset

Signed-off-by: Lad, Prabhakar <Prabhakar.Lad@racelogic.co.uk>
Added support for ulogd2

Signed-off-by: Lad, Prabhakar <Prabhakar.Lad@racelogic.co.uk>
Added support for v4l-utils

Signed-off-by: Lad, Prabhakar <Prabhakar.Lad@racelogic.co.uk>