cocci: Add semantic patch to refactor dns_message_destroy()

dns_message_t objects are now being handled using reference counting
semantics, so now dns_message_destroy() is not called directly anymore,
dns_message_detach must be called instead.

diff --git a/cocci/dns_message_destroy.spatch b/cocci/dns_message_destroy.spatch
new file mode 100644 (file)
index 0000000..4043525
--- /dev/null
+++ b/cocci/dns_message_destroy.spatch
@@ -0,0 +1,6 @@
+@@
+expression M;
+@@
+
+- dns_message_destroy(M);
++ dns_message_detach(M);