document the --timing option

guangyee · witekest · commit e6bbc995c5e5 · 2019-05-08T08:17:55.000Z
Change-Id: I2d13088ea026ac7288213fe808874c4a3a81313a
Story: #2005315
Task: #30863
diff --git a/doc/source/cli/man/openstack.rst b/doc/source/cli/man/openstack.rst
@@ -205,6 +205,10 @@ OPTIONS
 
     Show help message and exit
 
+.. option:: --timing
+
+    Print API call timing information
+
 COMMANDS
 ========
 
