Update to 2.21

Replace the do-configure routine with MODPY_ADJ_FILES.
Replace the patch with sed -i.

www/rawdog/Makefile

@@ -1,8 +1,8 @@
-# $OpenBSD: Makefile,v 1.29 2015/02/16 22:57:13 naddy Exp $
+# $OpenBSD: Makefile,v 1.30 2015/07/20 16:12:58 bcallah Exp $
 
 COMMENT=	RSS Aggregator Without Delusions Of Grandeur
 
-MODPY_EGG_VERSION=	2.20
+MODPY_EGG_VERSION=	2.21
 DISTNAME=	rawdog-${MODPY_EGG_VERSION}
 CATEGORIES=	www news
 
@@ -16,6 +16,7 @@ PERMIT_PACKAGE_CDROM=	Yes
 MASTER_SITES=	http://offog.org/files/
 
 MODULES=	lang/python
+MODPY_ADJ_FILES=rawdog
 
 RUN_DEPENDS=	textproc/py-feedparser
 
@@ -24,10 +25,8 @@ NO_TEST=	Yes
 DOCDIR=		${PREFIX}/share/doc/rawdog
 EXAMPLESDIR=	${PREFIX}/share/examples/rawdog
 
-do-configure:
-	@perl -pi -e \
-		's,/usr/bin/env python,/usr/bin/env python${MODPY_VERSION},g' \
-		${WRKSRC}/rawdog
+post-patch:
+	sed -i 's,share/man,man,g' ${WRKSRC}/setup.py
 
 post-install:
 	${INSTALL_DATA_DIR} ${DOCDIR}

www/rawdog/distinfo

@@ -1,2 +1,2 @@
-SHA256 (rawdog-2.20.tar.gz) = CmOybMERsN7KRB9JgXe0m+AzB2DFwOJFhM25uh5/1aY=
-SIZE (rawdog-2.20.tar.gz) = 66933
+SHA256 (rawdog-2.21.tar.gz) = YADBQoXku2W2BqUxX2Qj2qCsbbT9QSS0oRL6C846vzg=
+SIZE (rawdog-2.21.tar.gz) = 67812

www/rawdog/patches/patch-setup_py

@@ -1,12 +0,0 @@
-$OpenBSD: patch-setup_py,v 1.4 2013/10/04 23:26:51 bcallah Exp $
---- setup.py.orig	Tue Sep 10 06:06:35 2013
-+++ setup.py	Fri Oct  4 19:18:28 2013
-@@ -14,7 +14,7 @@ setup(name = "rawdog",
- 	author_email = "ats@offog.org",
- 	url = "http://offog.org/code/rawdog/",
- 	scripts = ['rawdog'],
--	data_files = [('share/man/man1', ['rawdog.1'])],
-+	data_files = [('man/man1', ['rawdog.1'])],
- 	packages = ['rawdoglib'],
- 	classifiers = [
- 		"Development Status :: 5 - Production/Stable",