Ensure config.h is always included before stdlib headers

In particular, if an stdlib header goes first, it includes features.h
which only checks _FILE_OFFSET_BITS *once*, meaning that these files end
up compiled *without* _FILE_OFFSET_BITS taking effect, which affects
fcxml's operations in listing directories.

Signed-off-by: Ryan Gonzalez <ryan.gonzalez@collabora.com>

fc-list/fc-list.c

@@ -22,11 +22,6 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-#include <fontconfig/fontconfig.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <locale.h>
 #ifdef HAVE_CONFIG_H
 #include <config.h>
 #else
@@ -35,6 +30,11 @@
 #endif
 #define HAVE_GETOPT 1
 #endif
+#include <fontconfig/fontconfig.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <locale.h>
 
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>

src/fcxml.c

@@ -22,8 +22,8 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-#include <string.h>
 #include "fcint.h"
+#include <string.h>
 #include <fcntl.h>
 #include <stdarg.h>