moved the definition of void to command_context from command_processor

lib/pry/command_context.rb

@@ -17,7 +17,6 @@ class Pry
     attr_accessor :opts
     attr_accessor :command_set
     attr_accessor :command_processor
-    attr_accessor :void
     attr_accessor :_pry_
 
     # Run a command from another command.
@@ -42,6 +41,10 @@ class Pry
       Pry::Helpers::Text
     end
 
+    def void
+      VOID_VALUE
+    end
+
     include Pry::Helpers::BaseHelpers
     include Pry::Helpers::CommandHelpers
   end

lib/pry/command_processor.rb

@@ -159,7 +159,6 @@ class Pry
       context.eval_string = options[:eval_string]
       context.arg_string  = options[:arg_string]
       context.command_set = commands
-      context.void        = Pry::CommandContext::VOID_VALUE
       context._pry_ = @pry_instance
 
       context.command_processor = self