clarifying comment in patch.py.
clarifying comment in patch.py.

yarikoptic/vcrpy,poussik/vcrpy,aclevy/vcrpy,bcen/vcrpy,mgeisler/vcrpy,ByteInternet/vcrpy,graingert/vcrpy,kevin1024/vcrpy,kevin1024/vcrpy,poussik/vcrpy,graingert/vcrpy,ByteInternet/vcrpy,IvanMalison/vcrpy,gwillem/vcrpy,agriffis/vcrpy