db/upnp: don't construct redundant empty vector<string> in Visit()

We know already that vpath is empty, let's use this instance.

db/upnp: don't construct redundant empty vector<string> in Visit()
7777057d · Max Kellermann · dc5ef9ad · 7777057d
Commit 7777057d authored Jan 21, 2014 by Max Kellermann
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UpnpDatabasePlugin.cxx src/db/UpnpDatabasePlugin.cxx +1 -1

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--- a/src/db/UpnpDatabasePlugin.cxx
+++ b/src/db/UpnpDatabasePlugin.cxx
@@ -704,7 +704,7 @@ UpnpDatabase::Visit(const DatabaseSelection &selection,
 		} else {
 			// Recursive is set: visit each server
 			for (auto& server : servers) {
-				if (!VisitServer(server, std::vector<std::string>(), selection,
+				if (!VisitServer(server, vpath, selection,
 						 visit_directory, visit_song, visit_playlist, error))
 					return false;
 			}