From 3860bb6dbfb3dfe70cef33823661145dcc5b864c Mon Sep 17 00:00:00 2001
From: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Date: Fri, 10 Jan 2014 09:10:18 -0500
Subject: man: clarify sd_bus_e_get_errno with NULL arg

---
 man/sd_bus_error.xml | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/man/sd_bus_error.xml b/man/sd_bus_error.xml
index 38bc30311b..2d6be1e5d3 100644
--- a/man/sd_bus_error.xml
+++ b/man/sd_bus_error.xml
@@ -297,9 +297,10 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
     <parameter>format</parameter> and the arguments.</para>
 
     <para><function>sd_bus_error_get_errno</function> is will convert
-    <structname>e->name</structname> to an errno-like value
-    using the same rules as <function>sd_bus_error_set</function>.
-    </para>
+    <structname>e->name</structname> to an errno-like value using the
+    same rules as <function>sd_bus_error_set</function>.  If
+    <parameter>e</parameter> is <constant>NULL</constant>, 0 will be
+    returned.</para>
 
     <para><function>sd_bus_error_copy</function> will initialize
     <parameter>dst</parameter> using the values in
-- 
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