Fix test failure on z/OS

NWilson · web-flow · commit c8e66a0f1205 · 2025-05-23T09:02:35.000Z
diff --git a/testdata/testoutput28 b/testdata/testoutput28
@@ -212,5 +212,6 @@ No match
 
 /\c&/
 Failed: error 168 at offset 3: \c must be followed by a letter or one of @[\]^_?
+        here: \c& |<-->|
 
 # End
