Alter the "Redundant pcase patter" warning message

* lisp/emacs-lisp/pcase.el (pcase--expand): Make the "Redundant
pcase pattern" warning less vague (bug#31350).

diff --git a/lisp/emacs-lisp/pcase.el b/lisp/emacs-lisp/pcase.el
index e603900b0958f078ed31c8d341c0e7c814c1619f..206f0dd1a9dede3f79d0150f51b193b95ada9adf 100644 (file)
--- a/lisp/emacs-lisp/pcase.el
+++ b/lisp/emacs-lisp/pcase.el
@@ -409,7 +409,8 @@ of the elements of LIST is performed as if by `pcase-let'.
       (dolist (case cases)
         (unless (or (memq case used-cases)
                     (memq (car case) pcase--dontwarn-upats))
-          (message "Redundant pcase pattern: %S" (car case))))
+          (message "pcase pattern %S shadowed by previous pcase pattern"
+                   (car case))))
       (macroexp-let* defs main))))
 
 (defun pcase--macroexpand (pat)