bug#37922: 26.3; move-file-to-trash puts wrong trash file name at name collision

[Eli Zaretskii <eliz@gnu.org>]

> From: Shingo Tanaka <shingo.fg8@gmail.com>
> Date: Fri, 25 Oct 2019 22:59:28 +0900
> 
> When delete-by-moving-to-trash is t and system-move-file-to-trash is not
> defined, move-file-to-trash moves the deleted file to system trash can
> following freedesktop.org trash can specification.
> 
> In this condition, when a file is deleted and it has the same name as the
> one of an already deleted file in trash can, move-file-to-trash generates
> another file name by using make-temp-file to avoid the name collision.
> Unfortunately, it does put a wrong name with suffix ".trashinfo".
> 
> For example, when 2 "hoge.txt" are deleted, expected files are like:
> 
> /home/myusername/.local/share/Trash/files:
> -rw-rw-rw- 1 myusername  10 2019-10-25 20:00 hoge.txt
> -rw-rw-rw- 1 myusername  10 2019-10-25 20:00 hoge.txtwmWP0h
> 
> /home/myusername/.local/share/Trash/info:
> -rw-rw-rw- 1 myusername  75 2019-10-25 20:00 hoge.txt.trashinfo
> -rw------- 1 myusername  75 2019-10-25 20:00 hoge.txtwmWP0h.trashinfo
> 
> However, the reality is the 2nd trash file in files directory is named
> wrongly with ".trashinfo" suffix like:
> 
> /home/myusername/.local/share/Trash/files:
> -rw-rw-rw- 1 myusername  10 2019-10-25 20:00 hoge.txt
> -rw-rw-rw- 1 myusername  10 2019-10-25 20:00 hoge.txtwmWP0h.trashinfo
>                                                             ^^^^^^^^^
> /home/myusername/.local/share/Trash/info:
> -rw-rw-rw- 1 myusername  75 2019-10-25 20:00 hoge.txt.trashinfo
> -rw------- 1 myusername  75 2019-10-25 20:00 hoge.txtwmWP0h.trashinfo
> 
> Here is a potential patch.

Thanks, I installed this.