Updade changelog to include some missing bug closures

debian/changelog

@@ -2,8 +2,9 @@ dpkg (1.16.1.1) UNRELEASED; urgency=low
 
   [ Raphaël Hertzog ]
   * Fix dpkg-source to not ignore the automatic patch when checking
-    for unrecorded changes.
+    for unrecorded changes. Closes: #643148
   * Let dpkg-source --commit create debian/patches when required.
+    Closes: #643037
   * Fix dpkg-buildflags --dump to return 0 as exit code and not 1.
   * Update dpkg-buildflags(1) to not include quotes in the examples
     setting DEB_BUILD_MAINT_OPTIONS.