Fixes c++ interface

Entire-Checkpoint: 01M6R32TFN5M7Y5NDZDPPKHYZH

external/Schusstafel/Schusstafel.h

@@ -42,15 +42,15 @@ public:
  
   public:
     explicit Fehler (const std::string& what_arg);
-    virtual ~Fehler () throw();
-    virtual const char* what() const throw();
+    virtual ~Fehler () noexcept;
+    virtual const char* what() const noexcept;
 
   private:
     std::string fehler_string;
   };
 
   Schusstafel (std::string pfad, std::string munitionsart, std::string suffix)
-    throw (Fehler);
+    noexcept(false);
 
   ~Schusstafel () {};