Correct some logging in ADS

b/11436795
Some of the logging I enabled here actually causes an
exception to be thrown because the format didn't match
the args in the log command.

Change-Id: If86942e64927c0e8df7573ef099824899e20c289
diff --git a/src/com/android/email/service/AttachmentDownloadService.java b/src/com/android/email/service/AttachmentDownloadService.java
index 2aeccea..87b9c30 100644
--- a/src/com/android/email/service/AttachmentDownloadService.java
+++ b/src/com/android/email/service/AttachmentDownloadService.java
@@ -713,9 +713,9 @@
                         default: code = Integer.toString(statusCode); break;
                     }
                     if (statusCode != EmailServiceStatus.IN_PROGRESS) {
-                        LogUtils.d(TAG, ">> Attachment " + attachmentId + ": " + code);
+                        LogUtils.d(TAG, ">> Attachment status " + attachmentId + ": " + code);
                     } else if (progress >= (req.lastProgress + 10)) {
-                        LogUtils.d(TAG, ">> Attachment " + attachmentId + ": " + progress + "%");
+                        LogUtils.d(TAG, ">> Attachment progress %d: %d%%", attachmentId, progress);
                     }
                 }
                 req.lastStatusCode = statusCode;