Override the operatingsystem fact definition for sabayon

lib/facter/operatingsystem.rb

@@ -0,0 +1,14 @@
+Facter.add(:operatingsystem) do
+   # Sabayon Linux is a variant of Gentoo so this resolution needs to come
+   # before the Gentoo resolution.
+   has_weight(100)
+   confine :kernel => :linux
+
+   setcode do
+     distid = Facter.value(:lsbdistid)
+     if distid == "Sabayon"
+       'Sabayon'
+     end
+   end
+ end
+