bug#15797: 24.3.50; Info: Mention cache-long-scans

[Jambunathan K]

Michael Heerdegen <michael_heerdegen@web.de> writes:

> So, it's probably better not to advertise it until it works ok.

What comes first: Hen or the Egg?  Difficult to answer.

I happened to suggest this variable on Org-mode list.  Having long lines
(i.e., avoiding wrapped lines) has it's advantages.  It helps produce
sensible diffs.