Commons Cli中的截断选项被错误接受

import org.apache.commons.cli.*;

public class CommandLineParserExample {
    public static void main(String[] args) {
        Options options = new Options();
        options.addOption("h", "help", false, "Display help information");

        CommandLineParser parser = new DefaultParser();
        try {
            CommandLine cmd = parser.parse(options, args);

            if (cmd.hasOption("h")) {
                // 显示帮助信息
                HelpFormatter formatter = new HelpFormatter();
                formatter.printHelp("myprogram", options);
            } else {
                // 处理其他选项
            }
        } catch (ParseException e) {
            // 解析失败，显示错误信息
            System.err.println("Error: " + e.getMessage());
        }
    }
}

Options options = new Options();
options.setAllowAbbreviation(false);