Cleanup Snapclient includes

common/daemon.hpp

@@ -1,6 +1,6 @@
 /***
     This file is part of snapcast
-    Copyright (C) 2014-2020  Johannes Pohl
+    Copyright (C) 2014-2024  Johannes Pohl
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -16,9 +16,10 @@
     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#ifndef DAEMON_H
-#define DAEMON_H
+#pragma once
 
+
+// standard headers
 #include <string>
 
 
@@ -36,6 +37,3 @@ private:
     std::string group_;
     std::string pidfile_;
 };
-
-
-#endif // DAEMON_H