maint: SSL::Inventory.serial should report missing names.

Our SSL inventory was able to find the serial number of a certificate by name,
but was incapable of living up to the contract it offered, that it would
actually report when a certificate was missing.

Now it returns `nil`, which is the same case as "no inventory", if the
certificate was not found, rather than accidentally returning the entire
inventory data as raw strings.

Reviewed-By: Pieter van de Bruggen <pieter@puppetlabs.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/lib/puppet/ssl/inventory.rb b/lib/puppet/ssl/inventory.rb
index e094da100..c210fdc35 100644
--- a/lib/puppet/ssl/inventory.rb
+++ b/lib/puppet/ssl/inventory.rb
@@ -48,5 +48,7 @@ class Puppet::SSL::Inventory
 
       return Integer($1)
     end
+
+    return nil
   end
 end