Package update nfdump in branch sisyphus

nfdump 1.6.16 and earlier is affected by: Buffer Overflow. The impact is: The impact could range from a denial of service to local code execution. The component is: nfx.c:546, nffile_inline.c:83, minilzo.c (redistributed). The attack vector is: nfdump must read and process a specially crafted file. The fixed version is: after commit 9f0fe9563366f62a71d34c92229da3432ec5cf0e.