Not working with go 1.18.1 on OS X/Darwin

[jonsjoberg]

When running the example code here https://pkg.go.dev/github.com/AlecAivazis/survey/v2 on go1.18.1 darwin/amd64, I get this error:

# golang.org/x/sys/unix
../../../go/pkg/mod/golang.org/x/sys@v0.0.0-20201119102817-f84b799fce68/unix/syscall_darwin.1_13.go:29:3: //go:linkname must refer to declared function or variable
../../../go/pkg/mod/golang.org/x/sys@v0.0.0-20201119102817-f84b799fce68/unix/zsyscall_darwin_amd64.1_13.go:27:3: //go:linkname must refer to declared function or variable
../../../go/pkg/mod/golang.org/x/sys@v0.0.0-20201119102817-f84b799fce68/unix/zsyscall_darwin_amd64.1_13.go:40:3: //go:linkname must refer to declared function or variable
../../../go/pkg/mod/golang.org/x/sys@v0.0.0-20201119102817-f84b799fce68/unix/zsyscall_darwin_amd64.go:28:3: //go:linkname must refer to declared function or variable
../../../go/pkg/mod/golang.org/x/sys@v0.0.0-20201119102817-f84b799fce68/unix/zsyscall_darwin_amd64.go:43:3: //go:linkname must refer to declared function or variable
../../../go/pkg/mod/golang.org/x/sys@v0.0.0-20201119102817-f84b799fce68/unix/zsyscall_darwin_amd64.go:59:3: //go:linkname must refer to declared function or variable
../../../go/pkg/mod/golang.org/x/sys@v0.0.0-20201119102817-f84b799fce68/unix/zsyscall_darwin_amd64.go:75:3: //go:linkname must refer to declared function or variable
../../../go/pkg/mod/golang.org/x/sys@v0.0.0-20201119102817-f84b799fce68/unix/zsyscall_darwin_amd64.go:90:3: //go:linkname must refer to declared function or variable
../../../go/pkg/mod/golang.org/x/sys@v0.0.0-20201119102817-f84b799fce68/unix/zsyscall_darwin_amd64.go:105:3: //go:linkname must refer to declared function or variable
../../../go/pkg/mod/golang.org/x/sys@v0.0.0-20201119102817-f84b799fce68/unix/zsyscall_darwin_amd64.go:121:3: //go:linkname must refer to declared function or variable
../../../go/pkg/mod/golang.org/x/sys@v0.0.0-20201119102817-f84b799fce68/unix/zsyscall_darwin_amd64.go:121:3: too many errors

Some googling suggests that golang.org/x/sys needs to be updated..

[MehrunesSky]

I propose a fix in this PR : #417