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-rw-r--r--man/udev.xml3
1 files changed, 2 insertions, 1 deletions
diff --git a/man/udev.xml b/man/udev.xml
index d5d8a17cdb..70f4f59c08 100644
--- a/man/udev.xml
+++ b/man/udev.xml
@@ -472,7 +472,8 @@
<varlistentry>
<term><literal>program</literal></term>
<listitem>
- <para>Execute an external program specified as the assigned value and
+ <para>Execute an external program specified as the assigned
+ value and if it returns successfully
import its output, which must be in environment key
format. Path specification, command/argument separation,
and quoting work like in <varname>RUN</varname>.</para>