--- a/hgext/histedit.py	Thu Jul 19 10:35:29 2018 +0200
+++ b/hgext/histedit.py	Thu Jul 19 22:30:37 2018 +0530
@@ -925,7 +925,6 @@
       _("don't strip old nodes after edit is complete")),
      ('', 'abort', False, _('abort an edit in progress')),
      ('o', 'outgoing', False, _('changesets not found in destination')),
-     ('', 'no-backup', False, _('do not save backup copies of files')),
      ('f', 'force', False,
       _('force outgoing even for unrelated repositories')),
      ('r', 'rev', [], _('first revision to be edited'), _('REV'))] +
@@ -1112,8 +1111,7 @@
     goal = _getgoal(opts)
     revs = opts.get('rev', [])
     # experimental config: ui.history-editing-backup
-    nobackup = (opts.get('no_backup') or
-                not ui.configbool('ui', 'history-editing-backup'))
+    nobackup = not ui.configbool('ui', 'history-editing-backup')
     rules = opts.get('commands', '')
     state.keep = opts.get('keep', False)