--- a/tests/test-help.out
+++ b/tests/test-help.out
@@ -179,7 +179,7 @@ options:
-a --text treat all files as text
-p --show-function show which function each change is in
-g --git use git extended diff format
- -D --nodates don't include dates in diff headers
+ --nodates don't include dates in diff headers
-w --ignore-all-space ignore white space when comparing lines
-b --ignore-space-change ignore changes in the amount of white space
-B --ignore-blank-lines ignore changes whose lines are all blank