reduce rounded corners of Share and Versions dropdown

core/css/share.css

@@ -4,8 +4,8 @@
 
 #dropdown {
  	background:#eee;
- 	border-bottom-left-radius:1em;
- 	border-bottom-right-radius:1em;
+	border-bottom-left-radius: 5px;
+	border-bottom-right-radius: 5px;
  	box-shadow:0 1px 1px #777;
  	display:block;
  	margin-right:7em;