Reorder and reorganize header files
Let the includes in the following order:
< system headers >
< libkmod >
< tool >
< local headers >
diff --git a/testsuite/test-depmod.c b/testsuite/test-depmod.c
index ae53753..ca9633c 100644
--- a/testsuite/test-depmod.c
+++ b/testsuite/test-depmod.c
@@ -16,13 +16,13 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <errno.h>
+#include <inttypes.h>
+#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
-#include <stddef.h>
-#include <errno.h>
-#include <unistd.h>
-#include <inttypes.h>
#include <string.h>
+#include <unistd.h>
#include "testsuite.h"