df usage (was: bug)

[Eric Blake]

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[Please use a more descriptive subject line]

According to punk on 12/13/2008 5:23 AM:
> /dev/sda5              65G   43G   22G  67% /media/disk-1
> address@hidden:~$ df -h --h
> df: option '--h' is ambiguous

This is the correct behavior.  Look at what you printed next:

> address@hidden:~$ df -h --help
...
>   -h, --human-readable  以容易理解的格式印出文件系统大小 (例如 1K 234M
...
>       --help     显示此帮助信息并离开

The getopt parser can't decide whether to treat --h as short for '--help'
or '--human-readable', so it errors out instead.  This is not a bug in df,
but in your usage pattern.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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