Fix psrinfo output to handle kernel zones.
--- facter-1.6.16/lib/facter/physicalprocessorcount.rb.orig	2013-06-10 15:28:25.355442031 -0600
+++ facter-1.6.16/lib/facter/physicalprocessorcount.rb	2013-06-10 15:31:09.056896313 -0600
@@ -75,7 +75,10 @@
     cmd = "/usr/sbin/psrinfo"
     result = nil
     if (major_version > 5) or (major_version == 5 and minor_version >= 8) then
-      result = Facter::Util::Resolution.exec("#{cmd} -p")
+      result = Facter::Util::Resolution.exec("#{cmd} -p 2> /dev/null")
+        if result.nil?
+          result = 0
+        end
     else
       output = Facter::Util::Resolution.exec(cmd)
       result = output.split("\n").length.to_s