Improve QuickAccessWallet documentation and client.

Test: manual - launch quick access wallet
Test: atest CtsQuickAccessWalletTestCases
Bug: b/149575358
Change-Id: I6f0b86dc62c3cd2b85c5b1b378c7b6c9ec663b58
diff --git a/core/java/android/service/quickaccesswallet/QuickAccessWalletServiceInfo.java b/core/java/android/service/quickaccesswallet/QuickAccessWalletServiceInfo.java
index 8793f28..23173a8 100644
--- a/core/java/android/service/quickaccesswallet/QuickAccessWalletServiceInfo.java
+++ b/core/java/android/service/quickaccesswallet/QuickAccessWalletServiceInfo.java
@@ -77,8 +77,9 @@
         }
 
         if (!Manifest.permission.BIND_QUICK_ACCESS_WALLET_SERVICE.equals(serviceInfo.permission)) {
-            Log.w(TAG, String.format("QuickAccessWalletService from %s does not have permission %s",
-                    serviceInfo.packageName, Manifest.permission.BIND_QUICK_ACCESS_WALLET_SERVICE));
+            Log.w(TAG, String.format("%s.%s does not require permission %s",
+                    serviceInfo.packageName, serviceInfo.name,
+                    Manifest.permission.BIND_QUICK_ACCESS_WALLET_SERVICE));
             return null;
         }