[tnozaki-liblzf] TNF local patch - fix compiler/lint warning

[Takehiko NOZAKI]

https://mail-index.netbsd.org/source-changes/2011/04/05/msg020630.html

get rid of most (but not all) lint on amd64

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[Takehiko NOZAKI]

partialy fixed <<cset:2762fd401f0c06402f2666e6a819785a1e7fbb36>>, <<cset:eb26acc9a35a16b258c1566799e17b089e4e263a>> and <<cset:f4be8ecb83b5afac4c2fce3150046240eac0fded>> lint(1) error is not fixed, cause my N6 already removed lint(1) cause too many false warning.