In `wp-admin/plugin-editor.php`, `break` is unreachabled after `exit`.

See #27882.

Built from https://develop.svn.wordpress.org/trunk@28310


git-svn-id: http://core.svn.wordpress.org/trunk@28138 1a063a9b-81f0-0310-95a4-ce76da25c4cd
In `wp-admin/plugins.php`, `break` is unreachabled after `exit`.

See #27882.

Built from https://develop.svn.wordpress.org/trunk@28311


git-svn-id: http://core.svn.wordpress.org/trunk@28139 1a063a9b-81f0-0310-95a4-ce76da25c4cd