devel/sfsexp: Use official tarball

- The tarballs generated by GitHub can, on rare occasions, change, so
use the tarball created by upstream.

- Add USES=pathfix, so the pkgconfig file does not need to be manually
installed.

PR:		264268

devel/sfsexp/Makefile

 PORTNAME=	sfsexp
-DISTVERSIONPREFIX=	v
 DISTVERSION=	1.4.0
 CATEGORIES=	devel
+MASTER_SITES=	https://github.com/mjsottile/${PORTNAME}/releases/download/v${DISTVERSION}/
 
 MAINTAINER=	jrm@FreeBSD.org
 COMMENT=	Small Fast S-Expression Library
 
 LICENSE=	LGPL21+
-LICENSE_FILE=	${WRKSRC}/LICENSE_LGPL
+LICENSE_FILE=	${WRKSRC}/COPYING
 
-USES=		autoreconf libtool pkgconfig
-USE_GITHUB=	yes
-GH_ACCOUNT=	mjsottile
+USES=		libtool pathfix pkgconfig
 USE_LDCONFIG=	yes
 
 GNU_CONFIGURE=	yes
 
 INSTALL_TARGET=	install-strip
 
-post-install:
-	${INSTALL_DATA} ${WRKSRC}/${PORTNAME}.pc \
-	  ${STAGEDIR}${PREFIX}/libdata/pkgconfig/
-
 .include <bsd.port.mk>

devel/sfsexp/distinfo

-TIMESTAMP = 1653592851
-SHA256 (mjsottile-sfsexp-v1.4.0_GH0.tar.gz) = ef09aca137957f7f4ef31d0429837cb8647288fb822f40c18d49e21235297594
-SIZE (mjsottile-sfsexp-v1.4.0_GH0.tar.gz) = 115554
+TIMESTAMP = 1653607895
+SHA256 (sfsexp-1.4.0.tar.gz) = 66b3d3a83b781613e04372fa0185518ed00fe1435de116be88cf0fdd3e4c0286
+SIZE (sfsexp-1.4.0.tar.gz) = 455753