go-fuzz: More breakage with go 1.6 rc1

<dgryski@kaepora[go-fastlz] \ʕ◔ϖ◔ʔ/ > go-fuzz-build github.com/dgryski/go-fastlz
failed to execute go build: exit status 1
can't load package: /tmp/go-fuzz-build640820997/src/go-fuzz-main/main.go:5:2: non-standard import "github.com/dgryski/go-fastlz" in standard package "go-fuzz-main"
/tmp/go-fuzz-build640820997/src/encoding/binary/binary.go:22:8: non-standard import "github.com/dvyukov/go-fuzz/go-fuzz-dep" in standard package "encoding/binary"
/tmp/go-fuzz-build640820997/src/io/io.go:13:8: non-standard import "github.com/dvyukov/go-fuzz/go-fuzz-dep" in standard package "io"
/tmp/go-fuzz-build640820997/src/math/abs.go:5:8: non-standard import "github.com/dvyukov/go-fuzz/go-fuzz-dep" in standard package "math"
/tmp/go-fuzz-build640820997/src/reflect/deepequal.go:7:8: non-standard import "github.com/dvyukov/go-fuzz/go-fuzz-dep" in standard package "reflect"
/tmp/go-fuzz-build640820997/src/strconv/atob.go:5:8: non-standard import "github.com/dvyukov/go-fuzz/go-fuzz-dep" in standard package "strconv"
/tmp/go-fuzz-build640820997/src/unicode/utf8/utf8.go:7:8: non-standard import "github.com/dvyukov/go-fuzz/go-fuzz-dep" in standard package "unicode/utf8"

Looks like this came from https://github.com/golang/go/commit/4223675913762a12cd23871fbd003d8a68cb49a1 From the commit message:

 Enforce that no standard package can depend on a non-standard one.