net/rsync: fix test patch when all options are disabled

If all options are disabled, the extra-patch distfile is not
extracted, breaking the build.
Make this step optional if at least one option is active.

PR:		284154

net/rsync/Makefile

@@ -1,6 +1,6 @@
 PORTNAME=	rsync
 DISTVERSION=	3.4.1
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	net
 MASTER_SITES=	https://www.mirrorservice.org/sites/rsync.samba.org/src/ \
 		http://rsync.mirror.garr.it/src/ \
@@ -78,7 +78,7 @@ ZLIB_BASE_CONFIGURE_ON=	--with-included-zlib=no
 
 .include <bsd.port.options.mk>
 
-.if make(makesum) || ${PORT_OPTIONS:MRENAMED} || ${PORT_OPTIONS:MICONV} || ${PORT_OPTIONS:MFLAGS}
+.if ${PORT_OPTIONS:MRENAMED} || ${PORT_OPTIONS:MICONV} || ${PORT_OPTIONS:MFLAGS}
 DISTFILES+=	${PORTNAME}-patches-${DISTVERSION}${EXTRACT_SUFX}
 .endif
 
@@ -88,8 +88,10 @@ DISTFILES+=	${PORTNAME}-patches-${DISTVERSION}${EXTRACT_SUFX}
 CONFIGURE_ARGS+=	ac_cv_search_libiconv_open=no
 .endif
 
+.if make(makesum) || ${PORT_OPTIONS:MRENAMED} || ${PORT_OPTIONS:MICONV} || ${PORT_OPTIONS:MFLAGS}
 pre-patch:
 	@${REINPLACE_CMD} 's:+int module_dirlen = 0;:+:' ${WRKSRC}/patches/fileflags.diff
+.endif
 
 post-patch:
 	@${REINPLACE_CMD} -e 's:/etc/r{1,2}sync:${ETCDIR}/:g' \