Debug output callback (#16839)

* Added debug output callback

* Better import

* Comment on line

lib/ansible/plugins/callback/debug.py

@@ -0,0 +1,35 @@
+from ansible.plugins.callback.default import CallbackModule as CallbackModule_default
+
+
+class CallbackModule(CallbackModule_default):  # pylint: disable=too-few-public-methods,no-init
+    '''
+    Override for the default callback module.
+
+    Render std err/out outside of the rest of the result which it prints with
+    indentation.
+    '''
+    CALLBACK_VERSION = 2.0
+    CALLBACK_TYPE = 'stdout'
+    CALLBACK_NAME = 'debug'
+
+    def _dump_results(self, result):
+        '''Return the text to output for a result.'''
+
+        # Enable JSON identation
+        result['_ansible_verbose_always'] = True
+
+        save = {}
+        for key in ['stdout', 'stdout_lines', 'stderr', 'stderr_lines', 'msg']:
+            if key in result:
+                save[key] = result.pop(key)
+
+        output = CallbackModule_default._dump_results(self, result)
+
+        for key in ['stdout', 'stderr', 'msg']:
+            if key in save and save[key]:
+                output += '\n\n%s:\n\n%s\n' % (key.upper(), save[key])
+
+        for key, value in save.items():
+            result[key] = value
+
+        return output