Fix embarrassing mistake in previous changeset.
Fix embarrassing mistake in previous changeset.

Re #23 -- first-draft of feature wasn't working with cd() correctly. Now
it does.

jaraco/fabric,pgroudas/fabric,kxxoling/fabric,TarasRudnyk/fabric,haridsv/fabric,mathiasertl/fabric,MjAbuz/fabric,sdelements/fabric,rodrigc/fabric,bitmonk/fabric,bitprophet/fabric,felix-d/fabric,tekapo/fabric,getsentry/fabric,tolbkni/fabric,askulkarni2/fabric,elijah513/fabric,cmattoon/fabric,ericholscher/fabric,rane-hs/fabric-py3,kmonsoor/fabric,akaariai/fabric,qinrong/fabric,fernandezcuesta/fabric,likesxuqiang/fabric,cgvarela/fabric,raimon49/fabric,StackStorm/fabric,hrubi/fabric,SamuelMarks/fabric,rbramwell/fabric,itoed/fabric,amaniak/fabric,ploxiln/fabric,opavader/fabric,pashinin/fabric,bspink/fabric,xLegoz/fabric