--- a/tests/test-empty-file
+++ b/tests/test-empty-file
@@ -18,7 +18,7 @@ hg commit -m 'add empty3' -d '1000000 0'
 hg heads
 
 hg merge 1
-# before changeset 05257fd28591, we didn't notice the 
+# before changeset 05257fd28591, we didn't notice the
 # empty file that came from rev 1.
 hg status
 hg commit -m merge -d '1000000 0'