Add stat submission to new "pending" directory, along with infrastructure to support pending.
diff --git a/toys.h b/toys.h
index d7cf210..9563143 100644
--- a/toys.h
+++ b/toys.h
@@ -34,6 +34,7 @@
 #include <sys/mount.h>
 #include <sys/resource.h>
 #include <sys/stat.h>
+#include <sys/statfs.h>
 #include <sys/statvfs.h>
 #include <sys/sysinfo.h>
 #include <sys/swap.h>