Switch to go mod

vendor/github.com/vbatts/go-mtree/lchtimes_unix.go

@@ -0,0 +1,22 @@
+// +build darwin dragonfly freebsd openbsd linux netbsd solaris
+
+package mtree
+
+import (
+	"os"
+	"time"
+
+	"golang.org/x/sys/unix"
+)
+
+func lchtimes(name string, atime time.Time, mtime time.Time) error {
+	utimes := []unix.Timespec{
+		unix.NsecToTimespec(atime.UnixNano()),
+		unix.NsecToTimespec(mtime.UnixNano()),
+	}
+	if e := unix.UtimesNanoAt(unix.AT_FDCWD, name, utimes, unix.AT_SYMLINK_NOFOLLOW); e != nil {
+		return &os.PathError{Op: "chtimes", Path: name, Err: e}
+	}
+	return nil
+
+}