Fix strict_variables = true

lib/puppet/parser/functions/getvar.rb

@@ -19,7 +19,10 @@ module Puppet::Parser::Functions
       raise Puppet::ParseError, ("getvar(): wrong number of arguments (#{args.length}; must be 1)")
     end
 
-    self.lookupvar("#{args[0]}")
+    begin
+      self.lookupvar("#{args[0]}")
+    rescue Puppet::ParseError # Eat the exception if strict_variables = true is set
+    end
 
   end
 

lib/puppet/parser/functions/has_interface_with.rb

@@ -41,7 +41,12 @@ has_interface_with("lo")                        => true
 
     result = false
     interfaces.each do |iface|
-      if value == lookupvar("#{kind}_#{iface}")
+      factval = nil
+      begin
+        factval = lookupvar("#{kind}_#{iface}")
+      rescue Puppet::ParseError # Eat the exception if strict_variables = true is set
+      end
+      if value == factval
         result = true
         break
       end