Update error message when a stream is not registered.

Framework/Random/RNGManager.cc

@@ -24,7 +24,7 @@ corsika::random::RNG& corsika::random::RNGManager::GetRandomStream(
   if (IsRegistered(pStreamName)) {
     return rngs.at(pStreamName);
   } else { // this stream name is not in the map
-    throw std::runtime_error(pStreamName + " is not a registered stream.");
+    throw std::runtime_error("'" + pStreamName + "' is not a registered stream.");
   }
 }
 

Processes/UrQMD/UrQMD.h

@@ -46,7 +46,6 @@ namespace corsika::process::UrQMD {
     bool CanInteract(particles::Code) const;
 
   private:
-
     void readXSFile(std::string const&);
 
     corsika::random::RNG& rng_ =