When running openssl in interactive mode, things aren't properly cleaned up between commands (see #4598 for an example).

In pre-1.1.0, every sub command did itss own initialization and cleanup explicitely. With 1.1.0 and on, initialization is done automatically in libcrypto and libssl, and cleanup is done at program exit. It is possible to do an explicit OPENSSL_cleanup, but reinitializing is not possible.

This makes interactive mode unusable for more than the simplest sub-commands.