Minor improvement to the ls example

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/cli/trunk@681077 13f79535-47bb-0310-9956-ffa450edef68

Author: ebourg

xdocs/usage.xml

@@ -345,8 +345,8 @@ options.addOption( "b", "escape", false, "print octal escapes for nongraphic "
                                          + "characters" );
 options.addOption( OptionBuilder.withLongOpt( "block-size" )
                                 .withDescription( "use SIZE-byte blocks" )
-                                .withValueSeparator( '=' )
                                 .hasArg()
+                                .withArgName("SIZE")
                                 .create() );
 options.addOption( "B", "ignore-backups", false, "do not list implied entried "
                                                  + "ending with ~");