SUNRPC: One line comment fix

Reported-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

net/sunrpc/clnt.c

@@ -1196,7 +1196,7 @@ size_t rpc_max_payload(struct rpc_clnt *clnt)
 EXPORT_SYMBOL_GPL(rpc_max_payload);
 
 /**
- * rpc_get_timeout - Get timeout for transport in tenths of seconds
+ * rpc_get_timeout - Get timeout for transport in units of HZ
  * @clnt: RPC client to query
  */
 unsigned long rpc_get_timeout(struct rpc_clnt *clnt)