Re: [PATCH v2 2/2] parseopt: check for duplicate long names and numerical options

Jeff King [off-list ref] writes:

On Sat, Feb 28, 2026 at 10:19:16AM +0100, René Scharfe wrote:

quoted

Perform the slightly expensive string duplicate check only when showing
the usage to keep the cost of normal invocations low.  t0012-help.sh
covers it.

Nice, this seems like the perfect compromise to me. We get a runtime
switch that kicks in at the moment we want, and we don't even have to
pollute the world with a new switch or environment variable.

Yes, absolutely.  This is very nice.