[Tarantool-patches] [PATCH v2] Add option to update file with reference output

[Alexander Turenko]

Sergey, please squash fixup commits before sending a next version of a
patchset to review.

Please, put flake8 configuration update first: so each commit will pass
CI.

The 'new' status disappears in the new patchset version. Can you look at
this again? It looks as unintentional change.

> -            elif not self.is_crash_reported and not self.is_equal_result:
> +            elif (not self.is_crash_reported and not self.is_equal_result):

Please, avoid unneeded diffs.

WBR, Alexander Turenko.