hack/update-vendor.sh

vendor/github.com/bazelbuild/buildtools/wspace/workspace.go

@@ -68,7 +68,7 @@ func FindWorkspaceRoot(rootDir string) (root string, rest string) {
 // Find searches from the given dir and up for the WORKSPACE file
 // returning the directory containing it, or an error if none found in the tree.
 func Find(dir string) (string, error) {
-	if dir == "" || dir == "/" || dir == "." {
+	if dir == "" || dir == "/" || dir == "." || (len(dir) == 3 && strings.HasSuffix(dir, ":\\")) {
 		return "", os.ErrNotExist
 	}
 	for repoRootFile, fiFunc := range repoRootFiles {