[Plugin: WordPress SEO by Yoast] Fixed WP SEO import bug

Hi,

I fixed the import function for the plugin. I’ve generated a diff patch so you can see the lines of code I changed.
It’s a very simple, couple lines of code.

http://pastebin.com/kq4NkJN9

I hope you look into committing it into your next release.

Thank you

http://wordpress.org/extend/plugins/wordpress-seo/