undo previous change: "e_os.h" is now the official name for the file

to include (but the OpenSSL_0_9_6-stable branche still has
inconsistencies)

crypto/rand/randfile.c

@@ -61,7 +61,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "openssl/e_os.h"
+#include "e_os.h"
 #include <openssl/crypto.h>
 #include <openssl/rand.h>