recaptcha package not ported to Python 3

["D'Arcy J.M. Cain" <darcy%NetBSD.org@localhost>]

I have found that this package doesn't work on Python 3 so I want to
make the following change.  I have two questions based on the fact that
the only change is not to build if it can't work.

1. Is it OK to commit during the freeze?
2. Does it need a PKGREVISION bump.

Cheers.

Index: Makefile
===================================================================
RCS file: /cvsroot/pkgsrc/www/py-recaptcha/Makefile,v
retrieving revision 1.4
diff -u -r1.4 Makefile
--- Makefile    31 Dec 2014 13:57:34 -0000      1.4
+++ Makefile    15 Dec 2015 19:10:59 -0000
@@ -10,5 +10,7 @@
 COMMENT=       Plugin for reCAPTCHA and reCAPTCHA Mailhide
 LICENSE=    mit
 
+PYTHON_VERSIONS_INCOMPATIBLE= 33 34 35 # not yet ported
+
 .include "../../lang/python/egg.mk"
 .include "../../mk/bsd.pkg.mk"


-- 
D'Arcy J.M. Cain <darcy%NetBSD.org@localhost>
http://www.NetBSD.org/ IM:darcy%Vex.Net@localhost