Media: Fix uploading media string.

Replace the incorrect three stops with an appropriate ellipsis in the string. Follow up to [62104].

Props presskopp, joedolson.
See #64883.

git-svn-id: https://develop.svn.wordpress.org/trunk@62105 602fd350-edb4-49c9-b593-d223f7449a82

Author: joedolson

src/js/media/views/attachment.js

@@ -21,7 +21,7 @@ Attachment = View.extend(/** @lends wp.media.view.Attachment.prototype */{
 		return {
 			'tabIndex':     0,
 			'role':         'checkbox',
-			'aria-label':   this.model.get( 'title' ) || wp.i18n.__( 'uploading...' ),
+			'aria-label':   this.model.get( 'title' ) || wp.i18n.__( 'uploading…' ),
 			'aria-checked': false,
 			'data-id':      this.model.get( 'id' )
 		};