reorder the header file

src/utils.c

@@ -20,6 +20,10 @@
  * <http://www.gnu.org/licenses/>.
  */
 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
 #include <stdlib.h>
 #include <unistd.h>
 #include <string.h>
@@ -31,10 +35,6 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
 #include "utils.h"
 
 #ifdef HAVE_SETRLIMIT