From 5eab619c9c36e57d9c7955ed80db91e83bb320b5 Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Sun, 7 Jun 2020 05:01:45 +0000
Subject:  Doc fixes and clarifications

---
 doc/s6-sudod.html | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

(limited to 'doc/s6-sudod.html')

diff --git a/doc/s6-sudod.html b/doc/s6-sudod.html
index 53ec2f7..255d946 100644
--- a/doc/s6-sudod.html
+++ b/doc/s6-sudod.html
@@ -53,9 +53,20 @@ for every variable sent by <a href="s6-sudoc.html">s6-sudoc</a>, if the
 variable is <strong>present but empty</strong> in s6-sudod's environment, then
 its value is overriden by the value given by s6-sudoc. A variable that is
 already nonempty, or that doesn't exist, in s6-sudod's environment, will not
-be transmitted to the child.
+be transmitted to the child. In other words:
 </p>
 
+<ul>
+ <li> If there's no variable <tt>X</tt> in s6-sudod's environment, the child
+will have no variable <tt>X</tt> defined </li>
+ <li> If there's a non-empty variable <tt>X</tt> in s6-sudod's environment,
+the child will inherit that variable, with its value, from s6-sudod </li>
+ <li> If there's an empty variable <tt>X</tt> in s6-sudod's environment,
+and s6-sudoc transmits variable <tt>X</tt>, then the child will inherit that
+variable with the value from s6-sudoc. (If s6-sudoc does not transmit <tt>X</tt>,
+the variable will be present, but empty, in the child's environment.) </li>
+</ul>
+
 <h2> Options </h2>
 
 <ul>
-- 
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