diff --git a/contrib/examples/example_app/test_configs/opt_no_tcp_dualstack.h b/contrib/examples/example_app/test_configs/opt_no_tcp_dualstack.h
index 154028b4..9d70acea 100644
--- a/contrib/examples/example_app/test_configs/opt_no_tcp_dualstack.h
+++ b/contrib/examples/example_app/test_configs/opt_no_tcp_dualstack.h
@@ -1,4 +1,4 @@
 #include "test_configs/opt_dualstack.h"
 
 #undef LWIP_TCP
-#define LWIP_TCP 0
\ No newline at end of file
+#define LWIP_TCP 0
diff --git a/contrib/examples/example_app/test_configs/opt_no_tcp_ipv4only.h b/contrib/examples/example_app/test_configs/opt_no_tcp_ipv4only.h
index d102a1c4..bd228318 100644
--- a/contrib/examples/example_app/test_configs/opt_no_tcp_ipv4only.h
+++ b/contrib/examples/example_app/test_configs/opt_no_tcp_ipv4only.h
@@ -1,4 +1,4 @@
 #include "test_configs/opt_ipv4only.h"
 
 #undef LWIP_TCP
-#define LWIP_TCP 0
\ No newline at end of file
+#define LWIP_TCP 0
diff --git a/contrib/examples/example_app/test_configs/opt_no_tcp_ipv6only.h b/contrib/examples/example_app/test_configs/opt_no_tcp_ipv6only.h
index af77df32..9f956e3c 100644
--- a/contrib/examples/example_app/test_configs/opt_no_tcp_ipv6only.h
+++ b/contrib/examples/example_app/test_configs/opt_no_tcp_ipv6only.h
@@ -1,4 +1,4 @@
 #include "test_configs/opt_ipv6only.h"
 
 #undef LWIP_TCP
-#define LWIP_TCP 0
\ No newline at end of file
+#define LWIP_TCP 0
diff --git a/contrib/examples/example_app/test_configs/opt_no_udp_dualstack.h b/contrib/examples/example_app/test_configs/opt_no_udp_dualstack.h
index 9b297b4e..c9b9e9af 100644
--- a/contrib/examples/example_app/test_configs/opt_no_udp_dualstack.h
+++ b/contrib/examples/example_app/test_configs/opt_no_udp_dualstack.h
@@ -1,4 +1,4 @@
 #include "test_configs/opt_dualstack.h"
 
 #undef LWIP_UDP
-#define LWIP_UDP 0
\ No newline at end of file
+#define LWIP_UDP 0
diff --git a/contrib/examples/example_app/test_configs/opt_no_udp_ipv4only.h b/contrib/examples/example_app/test_configs/opt_no_udp_ipv4only.h
index 3c6062bd..7aa3ace9 100644
--- a/contrib/examples/example_app/test_configs/opt_no_udp_ipv4only.h
+++ b/contrib/examples/example_app/test_configs/opt_no_udp_ipv4only.h
@@ -1,4 +1,4 @@
 #include "test_configs/opt_ipv4only.h"
 
 #undef LWIP_UDP
-#define LWIP_UDP 0
\ No newline at end of file
+#define LWIP_UDP 0
diff --git a/contrib/examples/example_app/test_configs/opt_no_udp_ipv6only.h b/contrib/examples/example_app/test_configs/opt_no_udp_ipv6only.h
index 12ac14d8..0572798b 100644
--- a/contrib/examples/example_app/test_configs/opt_no_udp_ipv6only.h
+++ b/contrib/examples/example_app/test_configs/opt_no_udp_ipv6only.h
@@ -1,4 +1,4 @@
 #include "test_configs/opt_ipv6only.h"
 
 #undef LWIP_UDP
-#define LWIP_UDP 0
\ No newline at end of file
+#define LWIP_UDP 0