void-repo-nonfree: update for musl.

srcpkgs/void-repo-nonfree/template

@@ -1,6 +1,6 @@
 # Template file for 'void-repo-nonfree'
 pkgname=void-repo-nonfree
-version=5
+version=6
 revision=1
 noarch=yes
 build_style=meta
@@ -15,6 +15,10 @@ do_install() {
 		${DESTDIR}/usr/share/xbps.d/10-repository-nonfree.conf
 	echo "repository=http://repo.voidlinux.eu/current/debug" > \
 		${DESTDIR}/usr/share/xbps.d/20-repository-debug.conf
+
+	case "$XBPS_TARGET_MACHINE" in
+		*-musl) sed -i 's,repo.voidlinux.eu,musl.voidlinux.net,g' ${DESTDIR}/usr/share/xbps.d/*.conf;;
+	esac
 }
 
 void-repo-debug_package() {