diff --git a/tests/test-empty-group b/tests/test-empty-group
--- a/tests/test-empty-group
+++ b/tests/test-empty-group
@@ -1,12 +1,12 @@
 #!/bin/sh
 #
-#  A          B    
-#  
-#  3  4       3    
-#  |\/|       |\   
-#  |/\|       | \  
-#  1  2       1  2 
-#  \ /        \ /  
+#  A          B
+#
+#  3  4       3
+#  |\/|       |\
+#  |/\|       | \
+#  1  2       1  2
+#  \ /        \ /
 #   0          0
 #
 # if the result of the merge of 1 and 2