Merge pull request #2561 from tvpartytonight/PA-4994

(PA-4994) Check for valid encoding from spawned process

Author: joshcooper

lib/facter/custom_facts/core/execution/base.rb

@@ -106,6 +106,7 @@ def execute_command(command, on_fail = nil, logger = nil, timeout = nil)
             raise Facter::Core::Execution::ExecutionFailure.new, message
           end
 
+          out.force_encoding(Encoding.default_external) unless out.valid_encoding?
           [out.strip, stderr]
         end