include
.RS
.TP 4
-.BR \-\-format= ( default | headers\-only )
+.BR \-\-format= ( default | json | headers\-only )
.RS
.TP 4
.BR default
Includes subject and quoted message body.
.TP
+.BR json
+Produces JSON 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.
+.TP
.BR headers\-only
Only produces In\-Reply\-To, References, To, Cc, and Bcc headers.
.RE
id:<message-id>), but it can be useful to reply to several messages at
once. For example, when a series of patches are sent in a single
thread, replying to the entire thread allows for the reply to comment
-on issue found in multiple patches.
+on issues found in multiple patches. The default format supports
+replying to multiple messages at once, but the JSON format does not.
.RE
.RE