Fix coding style

It was about damn time. Consistency is very important in such a
big codebase.

link.c

@@ -1,6 +1,7 @@
 /* See LICENSE file for copyright and license details. */
 #include <errno.h>
 #include <unistd.h>
+
 #include "util.h"
 
 int
@@ -8,7 +9,7 @@ main(int argc, char *argv[])
 {
 	argv0 = argv[0];
 
-	if(argc != 3)
+	if (argc != 3)
 		eprintf("usage: %s target linkname\n", argv0);
 	if (link(argv[1], argv[2]) < 0)
 		eprintf("link:");