vsprintf: use %pR, %pr instead of %pRt, %pRf

Jesse accidentally applied v1 [1] of the patchset instead of v2 [2].  This
is the diff between v1 and v2.

The changes in this patch are:
    - tidied vsprintf stack buffer to shrink and compute size more
      accurately
    - use %pR for decoding and %pr for "raw" (with type and flags) instead
      of adding %pRt and %pRf

[1] http://lkml.org/lkml/2009/10/6/491
[2] http://lkml.org/lkml/2009/10/13/441

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
diff --git a/drivers/pnp/system.c b/drivers/pnp/system.c
index 242d3a87..49c1720 100644
--- a/drivers/pnp/system.c
+++ b/drivers/pnp/system.c
@@ -48,7 +48,7 @@
 	 * example do reserve stuff they know about too, so we may well
 	 * have double reservations.
 	 */
-	dev_info(&dev->dev, "%pRt %s reserved\n", r,
+	dev_info(&dev->dev, "%pR %s reserved\n", r,
 		 res ? "has been" : "could not be");
 }