connector - documentation: simplify netlink message length assignment
Use the precalculated size instead of obfuscating the message length calculation by first subtracting the netlink header length from size and then use the NLMSG_LENGTH() macro to add it back again. Signed-off-by: NMathias Krause <minipli@googlemail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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