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-rw-r--r--man/systemctl.xml5
1 files changed, 5 insertions, 0 deletions
diff --git a/man/systemctl.xml b/man/systemctl.xml
index 31f3b1a909..62446d7a57 100644
--- a/man/systemctl.xml
+++ b/man/systemctl.xml
@@ -106,6 +106,11 @@
certain unit types. If not specified
units of in all load states will be
shown.</para>
+
+ <para>As a special case, if the argument
+ is <option>help</option>, a list of
+ allowed values will be printed and the
+ program will exit.</para>
</listitem>
</varlistentry>