requires.txt are now generated empty automagically; Closes: #889151

debian/changelog

@@ -8,7 +8,8 @@ matplotlib (2.2.2-1) UNRELEASED; urgency=medium
   * d/control: Remove XS-Testsuite field, not needed anymore
 
   [ Sandro Tosi ]
-  * New upstream release; Closes: #889151
+  * New upstream release
+    - requires.txt are now generated empty automagically; Closes: #889151
   * debian/control
     - add ipywidgets to b-d, needed by doc
     - add kiwisolver to b-d, new dependency