Client library loop high CPU load during SSL connect in 2.0.15

[jsopenrb]

The loop is constantly calling SSL_write until a connection is established. High CPU load can only be observed if the broker is slow to respond. Usually the initial connection is very fast so the extra load is negligible.
It happens after this change: e979a46

[ralight]

Thank you, that's a good spot.

[jsopenrb]

Have you seen my comment on the commit? mosquitto_want_write does not have a check for SSL_is_init_finished while mosquitto_loop does.