diff --git a/tests/test-extdiff.out b/tests/test-extdiff.out
--- a/tests/test-extdiff.out
+++ b/tests/test-extdiff.out
@@ -24,6 +24,8 @@ options:
  -r --rev      revision
  -I --include  include names matching the given patterns
  -X --exclude  exclude names matching the given patterns
+
+use "hg -v help falabala" to show global options
 making snapshot of 1 files from rev e27a2475d60a
 making snapshot of 1 files from rev 5e49ec8d3f05
 diffing a.e27a2475d60a a.5e49ec8d3f05