tests: Actually install the new binaries

I think since I landed a change to `--enable-new-name`, `/usr/bin/rpm-ostree`
became a symlink, and without the `-l` switch, rsync skips over them.

Hence, we have only been testing in vmcheck the old binaries, not new ones.
Oops.

Closes: #585
Approved by: jlebon

tests/vmcheck/overlay.sh

@@ -51,7 +51,7 @@ fi
 cd /ostree/repo/tmp
 rm vmcheck -rf
 ostree checkout $commit vmcheck --fsync=0
-rsync -rv /var/roothome/sync/insttree/usr/ vmcheck/usr/
+rsync -rlv /var/roothome/sync/insttree/usr/ vmcheck/usr/
 ostree refs --delete vmcheck || true
 ostree commit -b vmcheck -s '' --tree=dir=vmcheck --link-checkout-speedup
 ostree admin deploy vmcheck

tests/vmcheck/sync.sh

@@ -26,7 +26,7 @@ else
     # then do this in the VM
     set -x
     ostree admin unlock || :
-    rsync -rv /var/roothome/sync/insttree/usr/ /usr/
+    rsync -rlv /var/roothome/sync/insttree/usr/ /usr/
     restorecon /usr/libexec/rpm-ostreed
     systemctl restart rpm-ostreed
 fi