--- a/tests/README	Tue Jul 26 21:52:40 2005 -0500
+++ b/tests/README	Tue Jul 26 19:03:45 2005 -0800
@@ -28,7 +28,8 @@
 
 - diff will show the current time
 
-  use hg diff | sed "s/\(\(---\|+++\).*\)\t.*/\1/" to strip dates
+  use hg diff | sed "s/\(\(---\|+++\) [^ \t]*\)[ \t].*/\1/" to strip
+  dates
 
 - set -x and pipelines don't generate stable output