net: replace remaining __FUNCTION__ occurrences

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 67260c0..25871c6 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1060,7 +1060,7 @@
 	if (sysctl_ip_dynaddr > 1) {
 		printk(KERN_INFO "%s(): shifting inet->"
 				 "saddr from %d.%d.%d.%d to %d.%d.%d.%d\n",
-		       __FUNCTION__,
+		       __func__,
 		       NIPQUAD(old_saddr),
 		       NIPQUAD(new_saddr));
 	}