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

(cherry picked from commit 652e4dd7434d1603866c059aa8a67eaf8b73346f)
(cherry picked from commit 2d5982e4f2c76e41fa1d5524fcbcdfcbecdf656c)

diff --git a/man/systemctl.xml b/man/systemctl.xml
index 21c0084328d6285ee29b7455414e22bca8aa84ec..acf850c272afd1ba05b019f98f5ba1204b33d0ed 100644 (file)
--- a/man/systemctl.xml
+++ b/man/systemctl.xml
@@ -572,7 +572,8 @@ 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>