Fixes lint warnings

Change-Id: I3a622a0ab498fb14f50a948c07335955a8d40d1c
diff --git a/ui/views/Elevation/ElevationDrag/Application/src/main/java/com/example/android/elevationdrag/ElevationDragFragment.java b/ui/views/Elevation/ElevationDrag/Application/src/main/java/com/example/android/elevationdrag/ElevationDragFragment.java
index 9d14206..112c6c9 100644
--- a/ui/views/Elevation/ElevationDrag/Application/src/main/java/com/example/android/elevationdrag/ElevationDragFragment.java
+++ b/ui/views/Elevation/ElevationDrag/Application/src/main/java/com/example/android/elevationdrag/ElevationDragFragment.java
@@ -26,6 +26,8 @@
 import android.view.ViewGroup;
 import android.view.ViewOutlineProvider;
 
+import java.util.Locale;
+
 public class ElevationDragFragment extends Fragment {
 
     public static final String TAG = "ElevationDragFragment";
@@ -84,7 +86,7 @@
             @Override
             public void onClick(View v) {
                 mElevation += mElevationStep;
-                Log.d(TAG, String.format("Elevation: %.1f", mElevation));
+                Log.d(TAG, String.format(Locale.US, "Elevation: %.1f", mElevation));
                 floatingShape.setElevation(mElevation);
             }
         });
@@ -98,7 +100,7 @@
                 if (mElevation < 0) {
                     mElevation = 0;
                 }
-                Log.d(TAG, String.format("Elevation: %.1f", mElevation));
+                Log.d(TAG, String.format(Locale.US, "Elevation: %.1f", mElevation));
                 floatingShape.setElevation(mElevation);
             }
         });
diff --git a/ui/views/Elevation/ElevationDrag/README.md b/ui/views/Elevation/ElevationDrag/README.md
index b5c317a..84fa9e6 100644
--- a/ui/views/Elevation/ElevationDrag/README.md
+++ b/ui/views/Elevation/ElevationDrag/README.md
@@ -24,8 +24,8 @@
 Pre-requisites
 --------------
 
-- Android SDK v21
-- Android Build Tools v23.0.0
+- Android SDK 24
+- Android Build Tools v24.0.1
 - Android Support Repository
 
 Screenshots
@@ -54,7 +54,7 @@
 License
 -------
 
-Copyright 2014 The Android Open Source Project, Inc.
+Copyright 2016 The Android Open Source Project, Inc.
 
 Licensed to the Apache Software Foundation (ASF) under one or more contributor
 license agreements.  See the NOTICE file distributed with this work for