localize: include <cstdio> in files that uses the printf family of
functions to make the code build on gcc-4.4

gcc-4.4 further cleaned up header include dependencies so that e.x.
including <iostream> no longer pulls in printf.
diff --git a/tools/localize/file_utils.cpp b/tools/localize/file_utils.cpp
index dc8e86b..c0981d8 100644
--- a/tools/localize/file_utils.cpp
+++ b/tools/localize/file_utils.cpp
@@ -8,6 +8,7 @@
 #include <errno.h>
 #include <string.h>
 #include <stdlib.h>
+#include <cstdio>
 #include <host/Directories.h>
 #include "log.h"