diff --git a/src/testdir/test66.ok b/src/testdir/test66.ok
new file mode 100644
index 0000000..2c2249b
--- /dev/null
+++ b/src/testdir/test66.ok
@@ -0,0 +1,10 @@
+    abcdefghijklmnopqrstuvwxyz
+abcdefghij
+    abc	    defghijklmnopqrstuvwxyz
+    abc	    defghijklmnopqrstuvwxyz
+    abc	    defghijklmnopqrstuvwxyz
+    abcdefghijklmnopqrstuvwxyz
+abcdefghij
+    abc	    defghijklmnopqrstuvwxyz
+    abc		defghijklmnopqrstuvwxyz
+    abc	    defghijklmnopqrstuvwxyz