More source headers harmonization

* fix missing #ifdefs
* remove spaces and page feeds
* follow same set of rules everywhere, with cdio includes coming
  after standard C includes.

test/driver/freebsd.c

@@ -19,21 +19,21 @@
    Unit test for lib/driver/freebsd.c
 */
 #ifdef HAVE_CONFIG_H
-# include "config.h"
-# define __CDIO_CONFIG_H__ 1
+#include "config.h"
+#define __CDIO_CONFIG_H__ 1
 #endif
 
 #ifdef HAVE_STDIO_H
-# include <stdio.h>
+#include <stdio.h>
 #endif
 #ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
+#include <sys/types.h>
 #endif
 #ifdef HAVE_STDLIB_H
-# include <stdlib.h>
+#include <stdlib.h>
 #endif
 #ifdef HAVE_STRING_H
-# include <string.h>
+#include <string.h>
 #endif
 
 #include <cdio/cdio.h>