Rename arpping.[ch] to arp.[ch].

ndhc/CMakeLists.txt

@@ -10,7 +10,7 @@ set(NDHC_SRCS
   timeout.c
   script.c
   clientpacket.c
-  arpping.c
+  arp.c
   ndhc.c
   )
 

ndhc/arp.c

@@ -15,7 +15,7 @@
 #include <arpa/inet.h>
 #include <sys/time.h>
 #include <errno.h>
-#include "arpping.h"
+#include "arp.h"
 #include "clientpacket.h"
 #include "packet.h"
 #include "sys.h"

ndhc/ndhc.c

@@ -51,7 +51,7 @@
 #include "sys.h"
 #include "script.h"
 #include "socket.h"
-#include "arpping.h"
+#include "arp.h"
 #include "log.h"
 #include "chroot.h"
 #include "cap.h"

ndhc/timeout.c

@@ -6,7 +6,7 @@
 #include "script.h"
 #include "packet.h"
 #include "clientpacket.h"
-#include "arpping.h"
+#include "arp.h"
 #include "log.h"
 
 static void init_selecting_timeout(struct client_state_t *cs)