[NETFILTER]: Rename init functions.

Every netfilter module uses `init' for its module_init() function and
`fini' or `cleanup' for its module_exit() function.

Problem is, this creates uninformative initcall_debug output and makes
ctags rather useless.

So go through and rename them all to $(filename)_init and
$(filename)_fini.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index c8abc9d..4afbc69 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
@@ -571,18 +571,18 @@
 MODULE_ALIAS("nf_conntrack-" __stringify(AF_INET));
 MODULE_LICENSE("GPL");
 
-static int __init init(void)
+static int __init nf_conntrack_l3proto_ipv4_init(void)
 {
 	need_conntrack();
 	return init_or_cleanup(1);
 }
 
-static void __exit fini(void)
+static void __exit nf_conntrack_l3proto_ipv4_fini(void)
 {
 	init_or_cleanup(0);
 }
 
-module_init(init);
-module_exit(fini);
+module_init(nf_conntrack_l3proto_ipv4_init);
+module_exit(nf_conntrack_l3proto_ipv4_fini);
 
 EXPORT_SYMBOL(nf_ct_ipv4_gather_frags);