Fix typo in changelog to avoid warnings

Change-Id: Id3f589af4a82a1a0985000ca7f2a8a7d8959d7ed
diff --git a/debian/changelog b/debian/changelog
index 8b6eb5b..5c28d36 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -2,7 +2,7 @@
 
   * Fix broken use of --oneshot in snapshot app
 
- -- Coral <coral-support@google.com>  Thu 27 Aug 2020 12:33:45 -0700
+ -- Coral <coral-support@google.com>  Thu, 27 Aug 2020 12:33:45 -0700
 
 imx-board-tools (6-2) mendel-day; urgency=medium