better error messasge (#42770)

* better error messasge

(cherry picked from commit 9217fbb7dd)

changelogs/fragments/clarify_error_message.yml

@@ -0,0 +1,2 @@
+bugfixes:
+    - Fix an atomic_move error that is 'true', but  misleading. Now we show all 3 files involved and clarify what happened.

lib/ansible/module_utils/basic.py

@@ -2605,7 +2605,8 @@ class AnsibleModule(object):
                                 if unsafe_writes and e.errno == errno.EBUSY:
                                     self._unsafe_writes(b_tmp_dest_name, b_dest)
                                 else:
-                                    self.fail_json(msg='Unable to rename file: %s to %s: %s' % (src, dest, to_native(e)),
+                                    self.fail_json(msg='Unable to make %s into to %s, failed final rename from %s: %s' %
+                                                       (src, dest, b_tmp_dest_name, to_native(e)),
                                                    exception=traceback.format_exc())
                         except (shutil.Error, OSError, IOError) as e:
                             self.fail_json(msg='Failed to replace file: %s to %s: %s' % (src, dest, to_native(e)),