bug#20818: 24.3; `whitespace-line-column' should be a safe file-local variable

[Lars Ingebrigtsen]

Philipp Stephani <p.stephani2@gmail.com> writes:

> Create a file that has `whitespace-line-column' as file-local variable.
> Upon loading the file, the prompt for applying this unsafe variable
> appears.  I think the variable could be marked safe if it's either an
> integer or nil.

Looks like this has been fixed in the years since this bug was filed:

  This variable is safe as a file local variable if its value
  satisfies the predicate ‘integerp’.

It's only for integerp, not nil, though.

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