Sean Farley <sean.michael.farley@gmail.com> [Wed, 14 Aug 2013 13:10:27 -0500] rev 21833
patch: use ctx.node() instead of bare node variable
Future patches will allow patch.diff to take a basectx so node1 (and node2)
could make hexfunc error out. Instead, we'll call the node function on the
context object directly.