$OpenBSD: patch-lib_facter_memory_rb,v 1.2 2011/12/06 14:39:01 robert Exp $
--- lib/facter/memory.rb.orig	Thu Jun 16 20:24:42 2011
+++ lib/facter/memory.rb	Tue Dec  6 15:34:17 2011
@@ -93,7 +93,7 @@ if Facter.value(:kernel) == "AIX" and Facter.value(:id
 end
 
 if Facter.value(:kernel) == "OpenBSD"
-    swap = Facter::Util::Resolution.exec('swapctl -l | sed 1d')
+    swap = Facter::Util::Resolution.exec('swapctl -l | sed 1d') || ""
     swapfree, swaptotal = 0, 0
     swap.each do |dev|
         if dev =~ /^\S+\s+(\S+)\s+\S+\s+(\S+)\s+.*$/