+content. Implies --verify.
+.RE
+
+.RS 4
+.TP 4
+.BR \-\-exclude=(true|false)
+
+Specify whether to omit threads only matching search.tag_exclude from
+the search results (the default) or not. In either case the excluded
+message will be marked with the exclude flag (except when output=mbox
+when there is nowhere to put the flag).
+
+If --entire-thread is specified then complete threads are returned
+regardless (with the excluded flag being set when appropriate) but
+threads that only match in an excluded message are not returned when
+.B --exclude=true.
+
+The default is
+.B --exclude=true.
+