The existing implementation turns them into `Zend\\Foo\\Bar` as well. :)

This could probably be done by checking for `class_exists(...)` on each of these so that we don't end up modifying non-namespaced strings that happen to contain a `\\`, which will likely slow things down (though perhaps not enough to matter).

The aim of this PR, though, was to improve indentation and structure for readability. If merging of this PR is contingent upon prettying up namespaced classes as well then I'll see about doing so sometime early next week. Otherwise feel free to create a separate issue and refer me to it if there's no other reason to hold this up.