Standardize removal of BECOME-SUCCESS method and use it for async too

Fixes #13965
Fixes #13971

lib/ansible/plugins/action/__init__.py

@@ -24,6 +24,7 @@ import json
 import os
 import pipes
 import random
+import re
 import stat
 import tempfile
 import time
@@ -356,6 +357,14 @@ class ActionBase(with_metaclass(ABCMeta, object)):
 
         return data[idx:]
 
+    def _strip_success_message(self, data):
+        '''
+        Removes the BECOME-SUCCESS message from the data.
+        '''
+        if data.strip().startswith('BECOME-SUCCESS-'):
+            data = re.sub(r'^((\r)?\n)?BECOME-SUCCESS.*(\r)?\n', '', data)
+        return data
+
     def _execute_module(self, module_name=None, module_args=None, tmp=None, task_vars=None, persist_files=False, delete_remote_tmp=True):
         '''
         Transfer and run a module along with its arguments.

lib/ansible/plugins/action/async.py

@@ -75,4 +75,8 @@ class ActionModule(ActionBase):
 
         result['changed'] = True
 
+        # be sure to strip out the BECOME-SUCCESS message, which may
+        # be there depending on the output of the module
+        result['stdout'] = self._strip_success_message(result.get('stdout', ''))
+
         return result

lib/ansible/plugins/action/raw.py

@@ -19,8 +19,6 @@ __metaclass__ = type
 
 from ansible.plugins.action import ActionBase
 
-import re
-
 
 class ActionModule(ActionBase):
     TRANSFERS_FILES = False
@@ -42,7 +40,6 @@ class ActionModule(ActionBase):
         # for some modules (script, raw), the sudo success key
         # may leak into the stdout due to the way the sudo/su
         # command is constructed, so we filter that out here
-        if result.get('stdout','').strip().startswith('BECOME-SUCCESS-'):
-            result['stdout'] = re.sub(r'^((\r)?\n)?BECOME-SUCCESS.*(\r)?\n', '', result['stdout'])
+        result['stdout'] = self._strip_success_message(result.get('stdout', ''))
 
         return result