bug#57536: 28.1; filenotify problems on macOS with symbolic links to directories

[Eli Zaretskii]

> From: Michael Albinus <michael.albinus@gmx.de>
> Cc: pedz@easesoftware.com,  57536@debbugs.gnu.org
> Date: Sat, 17 Sep 2022 15:27:45 +0200
> 
> Besides this, do we want to extend file notifications to follow symlinks
> when indicated? As said already, we could add a new symbol `follow' to
> be used in the FLAGS argument for that function. Implementation shall be
> simple for inotify and w32notify; for the other backends it needs to be
> investigated.

I'm not sure this is needed: clients can always resolve the symlinks
themselves, no?

I'd start by documenting that we no longer follow symlinks when
watching: that's a kind-of incompatible change.  Then I'd go by
complaints, if any.