Fix generation of standalone INSTALL file which failed due to link to listen_rdma_socket variable

Author: vbwagner

doc/src/sgml/installation.sgml

@@ -804,7 +804,10 @@ su - postgres
        <listitem>
         <para>
          Enable <literal>rsocket</literal> API support for remote direct memory access (<acronym>RDMA</acronym>).
-         You must also set the <xref linkend="listen-rdma-addresses"> variable for your server to enable <acronym>RDMA</acronym> connections via <literal>rsocket</literal>.
+         You must also set the
+      <![%standalone-include[listen-rdma-address]]>
+      <![%standalone-ignore[<xref linkend="listen-rdma-addresses">]]>
+          variable for your server to enable <acronym>RDMA</acronym> connections via <literal>rsocket</literal>.
         </para>
        </listitem>
       </varlistentry>