xbps-src: binary-bootstrap now prefers XBPS_INSTALL_ARGS.

... and fallsback to the local repository otherwise.

xbps-src

@@ -273,8 +273,8 @@ install_bbootstrap() {
     mkdir -p $XBPS_MASTERDIR/var/db/xbps/keys
     cd $XBPS_MASTERDIR
     cp -f $XBPS_COMMONDIR/repo-keys/*.plist $XBPS_MASTERDIR/var/db/xbps/keys
-    ${_bootstrap_arch} xbps-install -S --repository=${XBPS_REPOSITORY} \
-        ${XBPS_INSTALL_ARGS} -c ${XBPS_HOSTDIR}/repocache \
+    ${_bootstrap_arch} xbps-install -S ${XBPS_INSTALL_ARGS} \
+        --repository=$XBPS_REPOSITORY -c ${XBPS_HOSTDIR}/repocache \
         -r $XBPS_MASTERDIR -y base-chroot${_subarch}
     if [ $? -ne 0 ]; then
         msg_error "Failed to install bootstrap packages!\n"