Improve the doc string of 'list-packages'

* lisp/emacs-lisp/package.el (list-packages): Describe in the doc
string the columns shown by the command.  (Bug#29420)

1 files changed, 3 insertions, 1 deletions

diff --git a/lisp/emacs-lisp/package.el b/lisp/emacs-lisp/package.el
index dd05c70dc8e..acf8df8a2cb 100644
--- a/lisp/emacs-lisp/package.el
+++ b/lisp/emacs-lisp/package.el
@@ -3397,7 +3397,9 @@ This function is called after `package-refresh-contents'."
   "Display a list of packages.
 This first fetches the updated list of packages before
 displaying, unless a prefix argument NO-FETCH is specified.
-The list is displayed in a buffer named `*Packages*'."
+The list is displayed in a buffer named `*Packages*', and
+includes the package's version, availability status, and a
+short description."
   (interactive "P")
   (require 'finder-inf nil t)
   ;; Initialize the package system if necessary.