man: mention special functionality for reload-or-restart with --marked (#37076)

We had a downstream discussion on what `systemctl reload-or-restart
--marked` does, until upstream chimed in and pointed on very special
behavior for that combination. 😜

The second references the first, but not vice versa. Let's fix this.

diff --git a/man/systemctl.xml b/man/systemctl.xml
index 1f70af60a648cfd5ac6f87902092a7d5a308d32d..bcbd5bf692994fc2aa7716134a4f1404e63cc739 100644 (file)
--- a/man/systemctl.xml
+++ b/man/systemctl.xml
@@ -506,6 +506,9 @@ Jan 12 10:46:45 example.com bluetoothd[8900]: gatt-time-server: Input/output err
           <listitem>
             <para>Reload one or more units if they support it. If not, stop and then start them instead. If the units
             are not running yet, they will be started.</para>
+
+            <para>This has a slightly differing functionality when used in combination with <option>--marked</option>,
+            see below.</para>
           </listitem>
         </varlistentry>
         <varlistentry>