Missing bit of previous patch.

2004-09-15  Aaron W. LaFramboise <aaronavay62@aaronwl.com>
	* unix.c: Include stdio.h.

From-SVN: r89892

libgfortran/io/unix.c

@@ -25,6 +25,7 @@ Boston, MA 02111-1307, USA.  */
 #include <limits.h>
 
 #include <unistd.h>
+#include <stdio.h>
 #include <sys/stat.h>
 #include <fcntl.h>