From 7ab375f57488112fcdc8c286cdf74276d50887c2 Mon Sep 17 00:00:00 2001
From: Moritz Barsnick <barsnick@gmx.net>
Date: Mon, 8 Jun 2020 17:39:00 +0200
Subject: [PATCH] doc/utils: document the "s", "ms" and "us" suffixes for
 durations

These suffixes were introduced in 61c972384d311508d07f9360d196909e27195655
and completed in 8218249f1f04de65904f58519bde21948e5a0783.

Signed-off-by: Moritz Barsnick <barsnick@gmx.net>
---
 doc/utils.texi | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/doc/utils.texi b/doc/utils.texi
index e7a9b40b35..44ce285d26 100644
--- a/doc/utils.texi
+++ b/doc/utils.texi
@@ -110,11 +110,13 @@ maximum of 2 digits. The @var{m} at the end expresses decimal value for
 @emph{or}
 
 @example
-[-]@var{S}+[.@var{m}...]
+[-]@var{S}+[.@var{m}...][s|ms|us]
 @end example
 
 @var{S} expresses the number of seconds, with the optional decimal part
-@var{m}.
+@var{m}.  The optional literal suffixes @samp{s}, @samp{ms} or @samp{us}
+indicate to interpret the value as seconds, milliseconds or microseconds,
+respectively.
 
 In both expressions, the optional @samp{-} indicates negative duration.