throw an exception if a value is attempted to be added to an Option that does not have any argument values

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/cli/trunk@129853 13f79535-47bb-0310-9956-ffa450edef68

Author: John Keyes

src/java/org/apache/commons/cli/Option.java

@@ -396,7 +396,7 @@ void addValue( String value )
     {
         switch( numberOfArgs ) {
             case UNINITIALIZED:
-                break;
+                throw new RuntimeException( "Cannot add value, no arguments allowed." );
             default:
                 processValue( value );
         }