user doc: another small update to description of log step
@@ -27,7 +27,8 @@ at the location where you want to add a log step.
. On the *Choose a Step* page, click *Log*.
. On the *Configure Log Step* page, select the content that you want
to log. If you select *Custom text*, then enter the text that you
-want to log in the text input field.
+want to log in the text input field or enter a Camel Simple language
+expression.
. When log step configuration is complete, in the upper right, click *Next*.
. When the integration is complete, publish it to start seeing output
from the new log step.
