man: indicate that the JOB parameter to "systemctl cancel" is optional

As per:

https://social.treehouse.systems/@grawity/110376583742207755
This commit is contained in:
Lennart Poettering 2023-05-16 09:35:39 +02:00 committed by Mike Yuan
parent f44744ff51
commit 7e0aaeb244

View file

@ -1181,7 +1181,7 @@ Jan 12 10:46:45 example.com bluetoothd[8900]: gatt-time-server: Input/output err
</listitem>
</varlistentry>
<varlistentry>
<term><command>cancel <replaceable>JOB</replaceable></command></term>
<term><command>cancel <optional><replaceable>JOB</replaceable></optional></command></term>
<listitem>
<para>Cancel one or more jobs specified on the command line