>>>>> On Thu, 09 May 2024, Michał Górny wrote:

>> +# it from being changed. The variable is left writable for use in overlays;
>> +# package naming restrictions would prohibit some otherwise-valid usernames.

> You're not following the original style (double spaces).

This is less about style than about groff detecting sentence ends in the
generated man page:
https://www.gnu.org/software/groff/manual/groff.html.node/Sentences.html