pupnp: fix logging error in deleteMappingsByDescription function

Change-Id: I496565785da8bc6bcb2f37d0ebe5408e986f9eef
diff --git a/src/upnp/protocol/pupnp/pupnp.cpp b/src/upnp/protocol/pupnp/pupnp.cpp
index f0f45f4..432ea60 100644
--- a/src/upnp/protocol/pupnp/pupnp.cpp
+++ b/src/upnp/protocol/pupnp/pupnp.cpp
@@ -1359,9 +1359,9 @@
     if (not(clientRegistered_ and igd->getLocalIp()))
         return;
 
-    if (logger_) logger_->debug("PUPnP: Remove all mappings (if any) on IGD {} matching descr prefix {}",
+    if (logger_) logger_->debug("PUPnP: Remove all mappings (if any) on IGD {} matching description prefix {}",
              igd->toString(),
-             Mapping::UPNP_MAPPING_DESCRIPTION_PREFIX);
+             description);
 
     ioContext->post([w=weak(), igd, description]{
         if (auto sthis = w.lock()) {