test/elpa.el: Put .elpa in ~ instead of the current directory

This leads to less duplication.

test/elpa.el

@@ -1,4 +1,4 @@
 (setq package-user-dir
-      (expand-file-name (format ".elpa/%s/elpa" emacs-version)))
+      (expand-file-name (format "~/.elpa/%s/elpa" emacs-version)))
 (package-initialize)
 (add-to-list 'load-path default-directory)

test/make-update.el

@@ -3,7 +3,7 @@
 
 ;;* initialize package.el
 (setq package-user-dir
-      (expand-file-name (format ".elpa/%s/elpa" emacs-version)))
+      (expand-file-name (format "~/.elpa/%s/elpa" emacs-version)))
 (message "installing in %s ...\n" package-user-dir)
 (package-initialize)
 (setq package-archives