typo in tin(5)

[Dennis Preiser]

A fix for a typo in tin(5).

Dennis

--- tin-1.9.6_r1/doc/tin.5 2010-02-06 21:15:36.000000000 +0100
+++ tin-1.9.6_r2/doc/tin.5 2010-03-14 12:47:22.000000000 +0100
@@ -499,7 +499,7 @@ directed to this email address instead
.B mark_ignore_tags
Identical to the tinrc variable of the same name
.TP
-.B mark_saved_unread
+.B mark_saved_read
Identical to the tinrc variable of the same name
.TP
.B mime_forward