Initialize Pretty formatter with output stream when autoformatting

features/autoformat_profile_output.feature

@@ -0,0 +1,23 @@
+Feature: Autoformat profile output
+
+  Background:
+    Given a file named "features/autoformat_output_has_profile_info.feature" with:
+      """
+      Feature:
+
+        Scenario: Passing
+          Given passing
+      """
+
+  Scenario: when using a profile the output should include 'Using the default profile...'
+    And a file named "cucumber.yml" with:
+    """
+      default: -r features
+    """
+    When I run `cucumber --profile default --autoformat tmp`
+    Then it should pass
+    And the output should contain:
+    """
+    Using the default profile...
+    """
+

lib/cucumber/cli/configuration.rb

@@ -172,7 +172,7 @@ def formatters(runtime)
         # can be done with the gherkin CLI.
         if @options[:autoformat]
           require 'cucumber/formatter/pretty'
-          return [Formatter::Pretty.new(runtime, nil, @options)]
+          return [Formatter::Pretty.new(runtime, out_stream, @options)]
         end
 
         @options[:formats].map do |format_and_out|