Fix backport branch filtering by black magic

m-kuhn · web-flow · commit adbdceae554b · 2019-03-04T15:28:22.000+01:00
some internals of github. Probably.
diff --git a/.travis.yml b/.travis.yml
@@ -9,7 +9,7 @@ cache:
   directories:
     - ${HOME}/.ccache
   timeout: 1000
-if: NOT branch =~ /^backport-\d+-on-/
+if: NOT branch =~ /^(cherry-pick-)?backport-\d+-on-/
 
 env:
   global:
