bug#34911: 26.1; doc about lock file names

[Noam Postavsky]

Noam Postavsky <npostavs@gmail.com> writes:

> Drew Adams <drew.adams@oracle.com> writes:
>>
>> The default value is "^\\.?#\\|^\\.$\\|^\\.\\.$".
>>
>> \\.?# matches only the first char of an auto-save file
>> name, and the first two chars of a lock file name.  It
>> does not match the full name, requiring it to end with
>> `#'.  That means that (1) it cannot be used as is for,
>> say, font-locking such a (complete) name, and (2) as
>> it is now, it can falsely identify files that are not
>> auto-save or lock files.
>
> It's a regexp, so of course you can name files which aren't auto-save or
> lock files in such a way that they match it.

After looking at it some more, I realize you were probably suggesting
that the regexp should have something like "^.#\\|^#.*#$" instead of
"^\\.?#"