man: document systemd-journald.conf(5)

[elogind.git] / man / os-release.xml

diff --git a/man/os-release.xml b/man/os-release.xml
index 8cceae1030119624471535d384f286c2f797b941..ff8fdf16be1f30bb88f4dd12dfc135acd470d37c 100644 (file)
--- a/man/os-release.xml
+++ b/man/os-release.xml
@@ -182,7 +182,7 @@
                                 <literal>ID=centos</literal> an
                                 assignment of <literal>ID_LIKE="rhel
                                 fedora"</literal> would be
-                                appropriate. For an operating systemd
+                                appropriate. For an operating system
                                 with <literal>ID=ubuntu</literal> an
                                 assignment of
                                 <literal>ID_LIKE=debian</literal> is
@@ -313,6 +313,13 @@
                 accommodate for rolling releases. In this case VERSION
                 and VERSION_ID may be unset. Applications should not
                 rely on these fields to be set.</para>
+
+                <para>Operating system vendors may extend the file
+                format and introduce new fields. It is highly
+                recommended to prefix new fields with an OS specific
+                name in order to avoid name clashes. Applications
+                reading this file must ignore unknown fields. Example:
+                <literal>DEBIAN_BTS="debbugs://bugs.debian.org/"</literal></para>
         </refsect1>
 
         <refsect1>