Make error message more readable

src/de/tud/kom/p2psim/impl/scenario/DefaultConfigurator.java

@@ -737,7 +737,7 @@ public class DefaultConfigurator implements Configurator {
 						if (cArgs.length != types.length)
 							throw new ConfigurationException(
 									"The size of the argument list of the XML configurable constructor ("
-											+ cArgs
+											+ Arrays.toString(cArgs)
 											+ ") is unequal to the size of arguments of the constructor is was applied to.");
 
 						// Constructor can be called with the given XML