[PATCH] network block device is mostly known as "NBD"

People search maintainers for NBD and then decide it is not
maintained.

(akpm: ditto LVM.  And other things, but I forget what they were)
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

MAINTAINERS

@@ -851,7 +851,7 @@ P:	Doug Warzecha
 M:	Douglas_Warzecha@dell.com
 S:	Maintained
 
-DEVICE-MAPPER
+DEVICE-MAPPER  (LVM)
 P:	Alasdair Kergon
 L:	dm-devel@redhat.com
 W:	http://sources.redhat.com/dm
@@ -2062,7 +2062,7 @@ L:	linux-hams@vger.kernel.org
 W:	http://www.linux-ax25.org/
 S:	Maintained
 
-NETWORK BLOCK DEVICE
+NETWORK BLOCK DEVICE (NBD)
 P:	Paul Clements
 M:	Paul.Clements@steeleye.com
 S:	Maintained