Update notes for submitted changes

* Prepare 5.1.9-SNAPSHOT builds

57/ccca75e610550536bb6f6b5a61d5d23a0f4fc6

@@ -0,0 +1,7 @@
+Code-Review+2: Matthias Sohn <matthias.sohn@sap.com>
+Verified+1: Matthias Sohn <matthias.sohn@sap.com>
+Submitted-by: Matthias Sohn <matthias.sohn@sap.com>
+Submitted-at: Wed, 05 Jun 2019 18:37:17 -0400
+Reviewed-on: https://git.eclipse.org/r/143362
+Project: jgit/jgit
+Branch: refs/heads/stable-5.1