Explain the option for upstream doc.
Signed-off-by: Matt Benjamin <mbenjamin@redhat.com>
:Default: ``30``
+``rgw log http headers``
+
+:Description: Comma-delimited list of HTTP headers to include with ops
+ log entries. Header names are case insensitive, and use
+ the full header name with words separated by underscores.
+
+:Type: String
+:Default: None
+:Example: "http_x_forwarded_for, http_x_special_k"
+
+
``rgw intent log object name``
:Description: The logging format for the intent log object name. See manpage