updated cadvisor deps

vendor/github.com/google/cadvisor/devicemapper/util.go

@@ -22,15 +22,11 @@ import (
 // ThinLsBinaryPresent returns the location of the thin_ls binary in the mount
 // namespace cadvisor is running in or an error.  The locations checked are:
 //
+// - /sbin/
 // - /bin/
 // - /usr/sbin/
 // - /usr/bin/
 //
-// ThinLsBinaryPresent checks these paths relative to:
-//
-// 1. For non-containerized operation - `/`
-// 2. For containerized operation - `/rootfs`
-//
 // The thin_ls binary is provided by the device-mapper-persistent-data
 // package.
 func ThinLsBinaryPresent() (string, error) {
@@ -39,7 +35,7 @@ func ThinLsBinaryPresent() (string, error) {
 		err        error
 	)
 
-	for _, path := range []string{"/bin", "/usr/sbin/", "/usr/bin"} {
+	for _, path := range []string{"/sbin", "/bin", "/usr/sbin/", "/usr/bin"} {
 		// try paths for non-containerized operation
 		// note: thin_ls is most likely a symlink to pdata_tools
 		thinLsPath = filepath.Join(path, "thin_ls")
@@ -47,13 +43,6 @@ func ThinLsBinaryPresent() (string, error) {
 		if err == nil {
 			return thinLsPath, nil
 		}
-
-		// try paths for containerized operation
-		thinLsPath = filepath.Join("/rootfs", thinLsPath)
-		_, err = os.Stat(thinLsPath)
-		if err == nil {
-			return thinLsPath, nil
-		}
 	}
 
 	return "", fmt.Errorf("unable to find thin_ls binary")