`sqlite3` help message shows wrong EOF key on Windows

Bug report

Bug description:

# enter the interactive sqlite3 console
python -m sqlite3
# print the help message
>> .help

• expect on Windows

Enter SQL code or one of the below commands, and press enter.

.version    Print underlying SQLite library version
.help       Print this help message
.quit       Exit the CLI, equivalent to CTRL-Z

• what we get now

Enter SQL code or one of the below commands, and press enter.

.version    Print underlying SQLite library version
.help       Print this help message
.quit       Exit the CLI, equivalent to CTRL-D

This issue is actually found by @yihong0618

CPython versions tested on:

CPython main branch

Operating systems tested on:

Windows

Linked PRs

• gh-139106

从 python -m sqlite3 入口点开始，并在 Windows 上复现 .help。跟踪格式化 .quit 帮助行的路径，然后验证该消息在 Windows 上显示 CTRL-Z，同时保留其他显示的命令。