Keep .exp files in cvs tree
diff --git a/Mac/Unsupported/stdwinmodule.mu.exp b/Mac/Unsupported/stdwinmodule.mu.exp
new file mode 100644
index 0000000..e85c2db
--- /dev/null
+++ b/Mac/Unsupported/stdwinmodule.mu.exp
@@ -0,0 +1 @@
+initstdwin