amend: support "history-editing-backup" config option...
amend: support "history-editing-backup" config option
Now, amend is in the list of those history editing commands
which support `history-editing-backup` config option.
If you don't want to store any backup then just use this config.
[ui]
hisotry-editing-backup = False
Current status of list of history editing commands which support
this config:
1. histedit
2. rebase
3. amend
Differential Revision:
https://phab.mercurial-scm.org/D3968
