Merge lp:~tormodvolden/casper/empty-dev into lp:casper

[Tormod Volden]

=== modified file 'scripts/casper'
--- scripts/casper	2009-08-31 12:15:55 +0000
+++ scripts/casper	2009-09-05 08:59:58 +0000
@@ -320,7 +320,7 @@
         umount "${snapback}"
     else
         dev=$(find_cow_device "${snap_label}")
-        if [ -b ${dev} ]; then
+        if [ -b "${dev}" ]; then
             if echo "${dev}" | grep -qs loop; then
                 # strange things happens, user confused?
                 snaploop=$( losetup ${dev} | awk '{print $3}' | tr -d '()' )