fix typo

Signed-off-by: Holger Levsen <holger@layer-acht.org>

hosts/common/etc/sudoers.d/jenkins

@@ -15,7 +15,7 @@ jenkins ALL=  \
 	/bin/tar -c --exclude ./sys/\* --exclude ./proc/\* -f /schroots/*, \
         /bin/tar xzf archlinux-bootstrap-*tar.gz -C /schroots, \
         /bin/tar xzf ./alpine-minirootfs-*.tar.gz -C /schroots/reproducible-alpine.new, \
-	/bin/tar --mtime=* --clamp-mtime -C /srv/workspace/* -cvf * \
+	/bin/tar --mtime=* --clamp-mtime -C /srv/workspace/* -cf * \
 	/usr/sbin/chroot /schroots/*, \
 	/usr/sbin/chroot /chroots/*, \
 	/usr/sbin/chroot /media/*, \