[Octave-bug-tracker] [bug #65318] Deprecation warning with C++20

[John W. Eaton]

Follow-up Comment #11, bug#65318 (group octave):

When this issue came up once before, I argued for using [=] by default almost
everywhere because it did the right thing (including capturing "*this" by
reference) and it was simpler for maintenance than explicitly listing all the
captured variables.  But now I agree it is probably best to just list them all
individually and avoid [=] (or [&], in the rare cases where that is
appropriate).  If we have advice about this in a style guide, we should
probably update it.  I can work on the conversion on the default branch.  I
already backed out my previous change.


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