updated macro spacing for styling purposes

Reviewed-by: NRichard Levitte <levitte@openssl.org>
Reviewed-by: NMatt Caswell <matt@openssl.org>
CLA: trivial

crypto/rand/randfile.c

@@ -209,7 +209,7 @@ int RAND_write_file(const char *file)
             return 1;
         }
     }
-#endif
+# endif
 #endif
 
 #if defined(O_CREAT) && !defined(OPENSSL_NO_POSIX_IO) && \