Merge various stdout callback plugins into 'default' (#41058)

This allows mixing and matching of stdout callback features

lib/ansible/utils/module_docs_fragments/default_callback.py

@@ -6,7 +6,7 @@ class ModuleDocFragment(object):
 
     DOCUMENTATION = """
     options:
-      show_skipped_hosts:
+      display_skipped_hosts:
         name: Show skipped hosts
         description: "Toggle to control displaying skipped task/host results in a task"
         default: True
@@ -16,6 +16,28 @@ class ModuleDocFragment(object):
           - key: display_skipped_hosts
             section: defaults
         type: boolean
+      display_ok_hosts:
+        name: Show 'ok' hosts
+        description: "Toggle to control displaying 'ok' task/host results in a task"
+        default: True
+        env:
+          - name: ANSIBLE_DISPLAY_OK_HOSTS
+        ini:
+          - key: display_ok_hosts
+            section: defaults
+        type: boolean
+        version_added: '2.7'
+      display_failed_stderr:
+        name: Use STDERR for failed tasks
+        description: "Toggle to control whether failed tasks are displayed to STDERR (vs. STDOUT)"
+        default: False
+        env:
+          - name: ANSIBLE_DISPLAY_FAILED_STDERR
+        ini:
+          - key: display_failed_stderr
+            section: defaults
+        type: boolean
+        version_added: '2.7'
       show_custom_stats:
         name: Show custom stats
         description: 'This adds the custom stats set via the set_stats plugin to the play recap'