net: Fix default in docs for tcp_orphan_retries.

Default should be listed at 8 instead of 7.

Reported-by: Denys Fedoryshchenko <denys@visp.net.lb>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index d3d653a..bfe9242 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -346,7 +346,7 @@
 	when RTO retransmissions remain unacknowledged.
 	See tcp_retries2 for more details.
 
-	The default value is 7.
+	The default value is 8.
 	If your machine is a loaded WEB server,
 	you should think about lowering this value, such sockets
 	may consume significant resources. Cf. tcp_max_orphans.