Tags: patch

>> Which reminds me -- why doesn't `C-x v =' work on normal files that have
>> backups?  I think that would be pretty nice, natural and useful...
>
> I have the same problem of sometimes typing `C-x v =' instead of `M-='
> (dired-backup-diff) on backuped files in dired, and vice versa - `M-='
> instead of `C-x v =' on VC files.

Now this annoyance finally got me - using these keys throws an error
most of the time: when files are not yet registered in vc I use `M-=',
but after registering them in vc, I continue typing the same key `M-='
and get that annoying error.  The situation with `C-x v =' is not better:
often after forgetting that a file is not yet under vc control, typing
`C-x v =' raises the same error.  Therefore, this patch to the rescue: