Merge pull request #12357 from apollo13/become_fix

Fixed #12356 -- Restored ansible 1.9.x become behavior.

lib/ansible/plugins/action/__init__.py

@@ -142,7 +142,7 @@ class ActionBase:
         if tmp and "tmp" in tmp:
             # tmp has already been created
             return False
-        if not self._connection.has_pipelining or not C.ANSIBLE_SSH_PIPELINING or C.DEFAULT_KEEP_REMOTE_FILES or self._play_context.become:
+        if not self._connection.has_pipelining or not C.ANSIBLE_SSH_PIPELINING or C.DEFAULT_KEEP_REMOTE_FILES or self._play_context.become_method == 'su':
             # tmp is necessary to store the module source code
             # or we want to keep the files on the target system
             return True