add directory study

study/linux-travel/minix-386/estdio21.tar/estdio21/vprintf.c

@@ -0,0 +1,11 @@
+/*                              v p r i n t f                              */
+
+#include "stdiolib.h"
+
+/*LINTLIBRARY*/
+
+int vprintf F2(CONST char *, fmt, VA_LIST, args)
+
+{
+  return __vfprintf(stdout, fmt, args);
+}