man: add a note that /var/run should not be used in tmpfiles

diff --git a/man/tmpfiles.d.xml b/man/tmpfiles.d.xml
index 5be96b8e9af833b2ad7d4c2bfe989e6636a156bf..5d393f3984053070fdc10fd14cb2af27f07ef969 100644 (file)
--- a/man/tmpfiles.d.xml
+++ b/man/tmpfiles.d.xml
@@ -741,6 +741,13 @@ e! /var/cache/krb5rcache - - - 0
     </example>
   </refsect1>
 
+  <refsect1>
+    <title><filename>/run/</filename> and <filename>/var/run/</filename></title>
+    <para><filename>/var/run/</filename> is a deprecated symlink to <filename>/run/</filename>, and
+    applications should use the latter. <command>systemd-tmpfiles</command> will warn if
+    <filename>/var/run/</filename> is used.</para>
+  </refsect1>
+
   <refsect1>
     <title>See Also</title>
     <para>