Fix up tor fact to not complain if the package has been purged

`dpkg -l $package` will return 0 if the package has been purged, so a
proper test for it instead.  Also add a pair of quotes to make `dpkg
--compare-versions` not complain.

diff --git a/modules/debian_org/lib/facter/software.rb b/modules/debian_org/lib/facter/software.rb
index 47fa46a..b3b3333 100644 (file)
--- a/modules/debian_org/lib/facter/software.rb
+++ b/modules/debian_org/lib/facter/software.rb
@@ -154,6 +154,6 @@ Facter.add("systemd") do
 end
 Facter.add("tor_ge_0_2_9") do
        setcode do
-               system(%{dpkg -l tor >/dev/null 2>&1 && dpkg --compare-versions $(dpkg-query -W -f='${Version}' tor) ge 0.2.9})
+               system(%{test -n "$(dpkg-query -W -f='${Version}' tor)" && dpkg --compare-versions "$(dpkg-query -W -f='${Version}' tor)" ge 0.2.9})
        end
 end