add missing regress output file
diff --git a/regress/t11.ok b/regress/t11.ok
new file mode 100644
index 0000000..1925bb4
--- /dev/null
+++ b/regress/t11.ok
@@ -0,0 +1 @@
+SHA256:4w1rnrek3klTJOTVhwuCIFd5k+pq9Bfo5KTxxb8BqbY