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.

lib/driver/cdio.c

@@ -23,8 +23,12 @@
 # define __CDIO_CONFIG_H__ 1
 #endif
 
+#ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
 #include <sys/stat.h>
+#endif
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif