--- a/tests/test-serve.t	Thu Apr 05 15:39:07 2012 +0200
+++ b/tests/test-serve.t	Thu Apr 05 12:31:21 2012 +0100
@@ -14,7 +14,7 @@
   >    else
   >        kill `cat hg.pid`
   >    fi
-  >    while kill -0 `cat hg.pid` 2>/dev/null; do true; done
+  >    while kill -0 `cat hg.pid` 2>/dev/null; do sleep 0; done
   > }
 
   $ hg init test