gravitystorm/openstreetmap-carto — pull request #444 by math1985 (2014-03-29 02:46:54+00:00)
Title: Render building passages as tunnels

Render building passages as tunnels if they are tagged with
covered=yes or tunnel=building_passage.
Previously, they were not rendered at all, and the road was
just drawn on top of the building in the regular style.

This resolves 2825 and 3757 on trac.