+
+Supported options for
+.B restore
+include
+.RS 4
+.TP 4
+.B \-\-accumulate
+
+The union of the existing and new tags is applied, instead of
+replacing each message's tags as they are read in from the dump file.
+
+.RE
+.RS 4
+.TP 4
+.B \-\-format=(sup|batch-tag|auto)
+
+Notmuch restore supports two plain text dump formats, with each line
+specifying a message-id and a set of tags.
+For details of the actual formats, see \fBnotmuch-dump\fR(1).
+
+.RS 4
+.TP 4
+.B sup
+
+The
+.B sup
+dump file format is specifically chosen to be