emacs-30 2329b36b1fb: ; project-files-relative-names: Update docstring (bug#72701)

[Dmitry Gutov]

branch: emacs-30
commit 2329b36b1fb0dab969554eb9e1617e31a9755084
Author: Dmitry Gutov <dmitry@gutov.dev>
Commit: Dmitry Gutov <dmitry@gutov.dev>

    ; project-files-relative-names: Update docstring (bug#72701)
---
 lisp/progmodes/project.el | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lisp/progmodes/project.el b/lisp/progmodes/project.el
index c38d3f0048a..78f5c127900 100644
--- a/lisp/progmodes/project.el
+++ b/lisp/progmodes/project.el
@@ -331,7 +331,10 @@ end it with `/'.  DIR must be either `project-root' or one 
of
 The file names should be relative to the project root.  And this can
 only happen when all returned files are in the same directory.
 In other words, the DIRS argument of `project-files' has to be nil or a
-list of only one element.")
+list of only one element.
+
+This variable is only meant to be set by Lisp code, not customized by
+the user.")
 
 (cl-defgeneric project-files (project &optional dirs)
   "Return a list of files in directories DIRS in PROJECT.