bug#54487: 29.0.50; connection-local value for `shell-file-name' not set in Dired buffers over Tramp

[Eli Zaretskii]

> From: Michael Albinus <michael.albinus@gmx.de>
> Cc: jporterbugs@gmail.com,  54487@debbugs.gnu.org
> Date: Mon, 21 Mar 2022 15:06:28 +0100
> 
> (shell-quote-argument ARGUMENT &optional POSIX)
> 
> Quote ARGUMENT for passing as argument to an inferior shell.
> 
> This function is designed to work with the syntax of your system’s
> standard shell, and might produce incorrect results with unusual shells.
> See Info node ‘(elisp)Security Considerations’.
> 
> If the optional POSIX argument is non-nil, ARGUMENT is quoted
> according to POSIX rules.

Thanks.

Please augment the last sentence by using "according to POSIX shell
quoting rules, regardless of the system's shell."  Or something
similar.