Add a kludge :-(

There were problems with putting e_os.h just into the top directory,
because the test programs are compiled within test/ in the "standard"
case in in their original directories in the makefile.one case;
and in the latter symlinks may not be available.

crypto/rand/md_rand.c

@@ -62,7 +62,7 @@
 #include <string.h>
 
 #ifndef FLAT_INC
-# include "../e_os.h"
+# include "../../e_os.h"
 #else
 # include "e_os.h"
 #endif