Re: BUG #16939: Plural interval for negative singular

I wrote:
> Hm.  We actually document PQprint.  While the other two entry points
> in that file aren't documented, they are listed in exports.txt,
> which means somebody *could* be calling them.  I think we'd at least
> have to go through a long deprecation period before we could consider
> removing them.

Meanwhile, returning to the point at hand in this thread: AFAICS
from a quick review of the git logs, the last intentional changes
of user-visible behavior in fe-print.c were more than 20 years ago.
Since then it's only seen in-passing bug fixes, such as libpq-wide
fixes of signal handling.

So, to the extent that this code has any use at all it's for
legacy applications.  I don't think we should be making random
changes in its behavior for at-best-weak reasons.

In short, I'm now a vote to revert every single bit of 5da9868ed.

			regards, tom lane