Make this test module aware so it passes with Go 1.16

diff --git a/regress/lib/libtls/gotls/go.mod b/regress/lib/libtls/gotls/go.mod
new file mode 100644 (file)
index 0000000..5b56240
--- /dev/null
+++ b/regress/lib/libtls/gotls/go.mod
@@ -0,0 +1,4 @@
+// $OpenBSD: go.mod,v 1.1 2021/02/23 20:36:16 tb Exp $
+module gotls
+
+go 1.16