[vte] [ring] Fix resize too

[Behdad Esfahbod <behdad src gnome org>]

commit 338d4a485f5b7609be1861aed6558693f90955c1
Author: Behdad Esfahbod <behdad behdad org>
Date:   Mon Sep 14 15:30:04 2009 -0400

    [ring] Fix resize too

 src/ring.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/ring.c b/src/ring.c
index d136ad3..a5d5281 100644
--- a/src/ring.c
+++ b/src/ring.c
@@ -308,7 +308,8 @@ _vte_ring_resize (VteRing *ring, guint max_rows)
 	/* Adjust the start of tail chunk now */
 	if (_vte_ring_length (ring) > max_rows) {
 		ring->start = ring->end - max_rows;
-		/* XXX writable */
+		if (ring->start >= ring->writable)
+			_vte_ring_reset_streams (ring, 0);
 	}
 
 	ring->max = max_rows;