--- a/tests/test-topic-change.t	Thu Oct 05 19:35:58 2017 +0530
+++ b/tests/test-topic-change.t	Fri Oct 06 10:28:09 2017 +0200
@@ -20,7 +20,7 @@
 
   $ hg init topics
   $ cd topics
-  $ for ch in {a..h}; do touch $ch; echo "foo" >> $ch; hg ci -Aqm "Added "$ch; done
+  $ for ch in a b c d e f g h; do touch $ch; echo "foo" >> $ch; hg ci -Aqm "Added "$ch; done
 
   $ hg glog
   @  7:ec2426147f0e {}