[PATCH] manual: Document compiler and memory barriers

[Florian Weimer]

* Rafal Luzynski:

> 6.12.2019 20:08 Florian Weimer <fweimer@redhat.com> wrote:
>> [...]
>> +their strength (that is, how much hardware optimization they prevent),
>> +and how large the system is (e.g., how many CPUs have to coordinate
>
> AFAIK "e.g.," should be "e.g.,@:" to avoid a long space which should
> normally be used between sentences.

I think the Texinfo manual is incomplete.  Clearly this does not happen
for all such periods, only those that are followed by whitespace in some
sense.  It's not easy to infer this from the Texinfo sources, but I
think that . ? ! followed by any of " ' ) ] (, possibly with repeats,
followed by whitespace causes that whitespace to be widened.  So “e.g.,”
should be fine on its own.

Thanks,
Florian