Added callback that removes callback noise

for those that only want logging but no events to screen

lib/ansible/plugins/callback/null.py

@@ -0,0 +1,30 @@
+# (c) 2017 Ansible Project
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+# Make coding more python3-ish
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+
+DOCUMENTATION = '''
+    callback: null
+    callback_type: stdout
+    requirements:
+      - set as main display callback
+    short_description: Don't display stuff to screen
+    version_added: "2.5"
+    description:
+        - This callback prevents outputing events to screen
+'''
+
+from ansible.plugins.callback import CallbackBase
+
+
+class CallbackModule(CallbackBase):
+
+    '''
+    This callback wont print messages to stdout when new callback events are received.
+    '''
+
+    CALLBACK_VERSION = 2.0
+    CALLBACK_TYPE = 'stdout'
+    CALLBACK_NAME = 'null'