ip: remove extra newlines at end-of-file

Shouldn't have extra blank lines.
diff --git a/ip/ipaddrlabel.c b/ip/ipaddrlabel.c
index a738ded..f01bc26 100644
--- a/ip/ipaddrlabel.c
+++ b/ip/ipaddrlabel.c
@@ -263,4 +263,3 @@
 	fprintf(stderr, "Command \"%s\" is unknown, try \"ip addrlabel help\".\n", *argv);
 	exit(-1);
 }
-
diff --git a/ip/ipfou.c b/ip/ipfou.c
index 0b83c27..8a86b18 100644
--- a/ip/ipfou.c
+++ b/ip/ipfou.c
@@ -156,4 +156,3 @@
 	fprintf(stderr, "Command \"%s\" is unknown, try \"ip fou help\".\n", *argv);
 	exit(-1);
 }
-
diff --git a/ip/iplink_bond_slave.c b/ip/iplink_bond_slave.c
index 33bea91..9b569b1 100644
--- a/ip/iplink_bond_slave.c
+++ b/ip/iplink_bond_slave.c
@@ -113,4 +113,3 @@
 	.parse_opt	= bond_slave_parse_opt,
 	.slave		= true,
 };
-
diff --git a/ip/ipprefix.c b/ip/ipprefix.c
index 26b5961..ee51f04 100644
--- a/ip/ipprefix.c
+++ b/ip/ipprefix.c
@@ -107,4 +107,3 @@
 
 	return 0;
 }
-
diff --git a/ip/iproute.c b/ip/iproute.c
index ae86cc0..eab512d 100644
--- a/ip/iproute.c
+++ b/ip/iproute.c
@@ -1811,4 +1811,3 @@
 	fprintf(stderr, "Command \"%s\" is unknown, try \"ip route help\".\n", *argv);
 	exit(-1);
 }
-
diff --git a/ip/tcp_metrics.c b/ip/tcp_metrics.c
index bdc503e..57b605f 100644
--- a/ip/tcp_metrics.c
+++ b/ip/tcp_metrics.c
@@ -508,4 +508,3 @@
 			"try \"ip tcp_metrics help\".\n", *argv);
 	exit(-1);
 }
-