Ticket #37504: 37504.diff

src/wp-admin/css/common.css

@@ -1308 +1308 @@
         padding: 1px 12px;
 }
 
+div[class="update-message"] { /* back-compat for pre-4.6 */
+        padding: 0.5em 12px 0.5em 0;
+}
+
 .notice p,
 .notice-title,
 div.updated p,

src/wp-admin/css/list-tables.css

@@ -1350 +1350 @@
         padding: 0;
 }
 
-.plugins .plugin-update-tr .notice {
+.plugins .plugin-update-tr .notice,
+.plugins .plugin-update-tr div[class="update-message"] { /* back-compat for pre-4.6 */
         margin: 5px 20px 15px 40px;
 }