Better error message for C-h P RET

Previously:
  package--incompatible-p: Wrong type argument: package-desc, nil
Now:
  No package specified

* lisp/emacs-lisp/package.el (describe-package): Don't use ## as input.

1 files changed, 1 insertions, 1 deletions

diff --git a/lisp/emacs-lisp/package.el b/lisp/emacs-lisp/package.el
index b60a8a136a1..43a9aa7f710 100644
--- a/lisp/emacs-lisp/package.el
+++ b/lisp/emacs-lisp/package.el
@@ -2254,7 +2254,7 @@ will be deleted."
                                  "Describe package: ")
                                packages nil t nil nil (when guess
                                                         (symbol-name guess)))))
-         (list (intern val))))))
+         (list (and (> (length val) 0) (intern val)))))))
   (if (not (or (package-desc-p package) (and package (symbolp package))))
       (message "No package specified")
     (help-setup-xref (list #'describe-package package)