<listitem>
<para>When used with <command>kill</command>, choose which
signal to send to selected processes. Must be one of the
- well known signal specifiers such as SIGTERM, SIGINT or
- SIGSTOP. If omitted defaults to
+ well known signal specifiers such as <constant>SIGTERM</constant>, <constant>SIGINT</constant> or
+ <constant>SIGSTOP</constant>. If omitted defaults to
<option>SIGTERM</option>.</para>
</listitem>
</varlistentry>
<listitem>
<para>Execute operation remotely. Specify a hostname, or
- username and hostname separated by @, to connect to. This
+ username and hostname separated by <literal>@</literal>, to connect to. This
will use SSH to talk to the remote systemd
instance.</para>
</listitem>