whitespace cleanup

Remove all trailing whitespace and space before tabs.
diff --git a/misc/arpd.c b/misc/arpd.c
index 0839e3f..7919eb8 100644
--- a/misc/arpd.c
+++ b/misc/arpd.c
@@ -433,7 +433,7 @@
 		perror("dump request failed");
 		exit(1);
 	}
-		
+
 }
 
 static void get_kern_msg(void)