Switch MASTER_SITE_OPENBSD users to new MASTER_SITES

Hi ports@,

A few ports still use MASTER_SITE_OPENBSD as sole "upstream".

I mirrored the files for those ports, and there is a patch below to
switch to a new MASTER_SITES.

There were a couple of ports which I believe are good candidates for
deletion (math/xspread and net/quirc), and are not included in
this diff. See previous mails on ports@ for details.

Comments? OK?

Index: audio/libsidplay/Makefile
===================================================================
RCS file: /cvs/ports/audio/libsidplay/Makefile,v
retrieving revision 1.16
diff -u -p -r1.16 Makefile
--- audio/libsidplay/Makefile 10 Apr 2017 11:45:23 -0000 1.16
+++ audio/libsidplay/Makefile 3 May 2017 13:25:38 -0000
@@ -14,7 +14,7 @@ PERMIT_PACKAGE_CDROM= Yes

WANTLIB = m ${LIBCXX}

-MASTER_SITES= ${MASTER_SITE_OPENBSD}
+MASTER_SITES= https://www.distfiles.pl/
EXTRACT_SUFX= .tgz

MODGNU_CONFIG_GUESS_DIRS= ${WRKSRC}/scripts
Index: audio/sidplay/Makefile
===================================================================
RCS file: /cvs/ports/audio/sidplay/Makefile,v
retrieving revision 1.12
diff -u -p -r1.12 Makefile
--- audio/sidplay/Makefile 10 Apr 2017 11:45:23 -0000 1.12
+++ audio/sidplay/Makefile 3 May 2017 13:25:38 -0000
@@ -14,7 +14,7 @@ PERMIT_PACKAGE_CDROM= Yes

WANTLIB= c m sidplay>=1 sndio ${LIBCXX}

-MASTER_SITES= ${MASTER_SITE_OPENBSD}
+MASTER_SITES= https://www.distfiles.pl/
EXTRACT_SUFX= .tgz

LIB_DEPENDS= audio/libsidplay
Index: devel/asm6/Makefile
===================================================================
RCS file: /cvs/ports/devel/asm6/Makefile,v
retrieving revision 1.3
diff -u -p -r1.3 Makefile
--- devel/asm6/Makefile 4 Oct 2016 14:23:15 -0000 1.3
+++ devel/asm6/Makefile 3 May 2017 13:25:38 -0000
@@ -12,7 +12,7 @@ CATEGORIES = devel
# of this software in any fashion."
PERMIT_PACKAGE_CDROM = Yes

-MASTER_SITES = ${MASTER_SITE_OPENBSD}
+MASTER_SITES = https://www.distfiles.pl/

WRKDIST = ${WRKDIR}
WANTLIB += c
Index: net/nsping/Makefile
===================================================================
RCS file: /cvs/ports/net/nsping/Makefile,v
retrieving revision 1.23
diff -u -p -r1.23 Makefile
--- net/nsping/Makefile 11 Mar 2013 11:35:50 -0000 1.23
+++ net/nsping/Makefile 3 May 2017 13:25:38 -0000
@@ -7,7 +7,7 @@ REVISION= 0
DISTFILES= nsping.tar.gz
CATEGORIES= net

-MASTER_SITES= ${MASTER_SITE_OPENBSD}
+MASTER_SITES= https://www.distfiles.pl/

PERMIT_PACKAGE_CDROM= Yes

Index: audio/morseplayer/Makefile
===================================================================
RCS file: /cvs/ports/audio/morseplayer/Makefile,v
retrieving revision 1.14
diff -u -p -r1.14 Makefile
--- audio/morseplayer/Makefile 10 Mar 2013 22:55:03 -0000 1.14
+++ audio/morseplayer/Makefile 3 May 2017 13:25:38 -0000
@@ -11,9 +11,7 @@ PERMIT_PACKAGE_CDROM= Yes

WANTLIB= c m sndio

-# no longer exists
-#MASTER_SITES= http://www.thought.net/jason/radio/
-MASTER_SITES= ${MASTER_SITE_OPENBSD}
+MASTER_SITES= https://www.distfiles.pl/

MAKE_FLAGS+= LDADD="-lsndio -lm"

Index: games/xlife/Makefile
===================================================================
RCS file: /cvs/ports/games/xlife/Makefile,v
retrieving revision 1.31
diff -u -p -r1.31 Makefile
--- games/xlife/Makefile 21 Mar 2015 21:28:27 -0000 1.31
+++ games/xlife/Makefile 3 May 2017 13:25:38 -0000
@@ -8,7 +8,7 @@ CATEGORIES= games

HOMEPAGE= http://www.catb.org/~esr/software.html

-MASTER_SITES = ${MASTER_SITE_OPENBSD}
+MASTER_SITES= https://www.distfiles.pl/

PERMIT_PACKAGE_CDROM= Yes