Reduce `tar` verbosity

diff --git a/kiss/2020.9-2/Dockerfile b/kiss/2020.9-2/Dockerfile
index d57b62c3be106ef8c2eacfbef2fa27059b5ebdbf..b08a37142a2af00aa11453549049de9a417a8dd1 100644 (file)
--- a/kiss/2020.9-2/Dockerfile
+++ b/kiss/2020.9-2/Dockerfile
@@ -13,7 +13,7 @@ RUN gpg --keyserver keys.gnupg.net --recv-key 46D62DD9F1DE636E \
   || gpg --keyserver pgp.mit.edu --recv-key 46D62DD9F1DE636E
 RUN gpg --verify "kiss-chroot-$version.tar.xz.asc"
 WORKDIR /mnt
-RUN tar xvf /build/kiss-chroot-$version.tar.xz
+RUN tar xf /build/kiss-chroot-$version.tar.xz
 
 FROM scratch AS kiss
 COPY --from=downloader /mnt/ /