man: note for systemctl clean --what that commas separate values

(cherry picked from commit 652e4dd7434d1603866c059aa8a67eaf8b73346f)

diff --git a/man/systemctl.xml b/man/systemctl.xml
index 4a6e93dc4beb6583a4e0d6a72611c23e7df8fb52..945f1f570fccd814f01683d4a73da69834cc58e7 100644 (file)
--- a/man/systemctl.xml
+++ b/man/systemctl.xml
@@ -573,7 +573,8 @@ Jan 12 10:46:45 example.com bluetoothd[8900]: gatt-time-server: Input/output err
             command only applies to units that use either of these settings. If <option>--what=</option> is
             not specified, the cache and runtime data as well as the file descriptor store are removed (as
             these three types of resources are generally redundant and reproducible on the next invocation of
-            the unit). Note that the specified units must be stopped to invoke this operation.</para>
+            the unit). Multiple values can be seperated by commas. Note that the specified units must be stopped
+            to invoke this operation.</para>
 
             <table>
               <title>