docbook: make mtd nand module init static

In the example the module_init function should be static.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/Documentation/DocBook/mtdnand.tmpl b/Documentation/DocBook/mtdnand.tmpl
index 133cd6c..020ac80 100644
--- a/Documentation/DocBook/mtdnand.tmpl
+++ b/Documentation/DocBook/mtdnand.tmpl
@@ -269,7 +269,7 @@
 			information about the device.
 		</para>
 		<programlisting>
-int __init board_init (void)
+static int __init board_init (void)
 {
 	struct nand_chip *this;
 	int err = 0;