vendor directory not properly populated

[zhsj]

The vendor dir https://github.com/xenserver/xe-guest-utilities/tree/master/vendor only has modules.txt files, without the vendor sources.

This makes plain go command fail to operate.

$ go build -o build/xenstore ./xenstore
go: finding module for package golang.org/x/sys/unix
xenstore/xenstore.go:11:2: cannot query module due to -mod=vendor
        (Go version in go.mod is at least 1.14 and vendor directory exists.)

Either removing the vendor/modules.txt file or keeping all vendor files will make go command happy.

$ rm -r vendor/
$ go build -o build/xenstore ./xenstore

$ go mod vendor
$ ls vendor/golang.org/x/sys/
AUTHORS  CONTRIBUTORS  internal  LICENSE  PATENTS  unix
$ go build -o build/xenstore ./xenstore