Changed SyncOperation.toKey() to not rely on the implementation of

Account.toString()

bug: 2898033
Change-Id: I6bfac976127190d2d667312df7aa9c7d57b21555

Author: fredquintana

core/java/android/content/SyncOperation.java

@@ -90,7 +90,7 @@ public String toString() {
     private String toKey() {
         StringBuilder sb = new StringBuilder();
         sb.append("authority: ").append(authority);
-        sb.append(" account: ").append(account);
+	sb.append(" account {name=" + account.name + ", type=" + account.type + "}");
         sb.append(" extras: ");
         extrasToStringBuilder(extras, sb, true /* asKey */);
         return sb.toString();