Show friendly message after package install

* lisp/emacs-lisp/package.el (package-install): Once we know the
package has successfully been installed using the `package-install`
command, instead of relying on the compile "Done" message, give a
message that tells the user that the package has been
installed.  (Bug#21857)

Copyright-paperwork-exempt: yes

1 files changed, 2 insertions, 1 deletions

diff --git a/lisp/emacs-lisp/package.el b/lisp/emacs-lisp/package.el
index c91ee445e13..43eb038a865 100644
--- a/lisp/emacs-lisp/package.el
+++ b/lisp/emacs-lisp/package.el
@@ -2081,7 +2081,8 @@ to install it but still mark it as selected."
                  (package-compute-transaction () (list (list pkg))))))
         (progn
           (package-download-transaction transaction)
-          (package--quickstart-maybe-refresh))
+          (package--quickstart-maybe-refresh)
+          (message  "Package `%s' installed." name))
       (message "`%s' is already installed" name))))
 
 (defun package-strip-rcs-id (str)