Patch works just fine with the exception of one detail – while URLs are shortened, neither Facebook, nor Delicious fetches info like post title. As a result, when sharing through Facebook, bit.ly URL is used as both URL and title, the same goes for Delicious.
Twitter works great, with certain changes I made:
'url' => 'https://twitter.com/home?status=TITLE%20|%20BLOGNAME|%20PERMALINK',
On the other hand, similar changes made to Facebook do not work, post title and blog name are not posted to Facebook:
'url' => 'https://www.facebook.com/share.php?u=PERMALINK&t=TITLE%20|%20BLOGNAME',
It all worked without the bit.ly patch.