bug#71572: [PATCH] seconds-to-string-approximate

[Eli Zaretskii <eliz@gnu.org>]

> Cc: Adam Porter <adam@alphapapa.net>, jonas@bernoul.li
> From: JD Smith <jdtsmith@gmail.com>
> Date: Sat, 15 Jun 2024 13:24:00 -0400
> 
> A very useful and widely used time operation is to approximate a given delay or age (in seconds) using a human-readable unit — think "2 hours", "5 days",  "3 weeks", or "7 months".  We have `seconds-to-string', but it provides more precision than is often required, skips some meaningful "human readable" duration units like weeks and months, and uses abbreviated units exclusively.  
> 
> For those familiar with magit, the `magit--age' function has provided this capability for quite some time (e.g. for short commit age), and other packages have adapted it.  It would be useful to have a version in core.
> 
> This patch provides a `seconds-to-string-approximate' function based loosely on `magit--age' and `seconds-to-string'.  It allows using abbreviated or full units, and can optionally round to the nearest half-unit.

Paul, any comments to the patch?