Document Layout.fuse_with_space
Document Layout.fuse_with_space

Reviewed By: pieterv

Differential Revision: D10146313

fbshipit-source-id: 3f5c07f00ec14a6a8f4b2035d9e9c63b4c51b89c

nmote/flow,nmote/flow,nmote/flow,nmote/flow,nmote/flow,nmote/flow,nmote/flow