+ Produces S-Expression output containing headers for a
+ reply message and the contents of the original message.
+ This output can be used by a client to create a reply
+ message intelligently.
+
+ <b>headers-only</b>
+
+ Only produces In-Reply-To, References, To, Cc, and Bcc
+ headers.
+
+ <b>--format-version=N</b>
+
+ Use the specified structured output format version. This is