CDRIVER 3903 fix doc to ENABLE_AUTOMATIC_INIT_AND_CLEANUP setting homogeneous

[fgalan]

Fixes https://jira.mongodb.org/browse/CDRIVER-3903 changing the only reference that I have found using NO to OFF (doing the other way around, changing all OFF to NO would have involved much more changes).

I hope you find it useful. Feedback welcome.

[bazile-clyde]

LGTM! Feel free to merge.

[fgalan]

Thanks!

The change correctly appears at https://s3.amazonaws.com/mciuploads/mongo-c-driver/docs/libmongoc/latest/init-cleanup.html#deprecated-feature-automatic-initialization-and-cleanup

I understand that when a new version of the driver gets released it will also appear in http://mongoc.org/libmongoc/current/init-cleanup.html#deprecated-feature-automatic-initialization-and-cleanup. Is my understanding correct?

[bazile-clyde]

Thanks!

The change correctly appears at https://s3.amazonaws.com/mciuploads/mongo-c-driver/docs/libmongoc/latest/init-cleanup.html#deprecated-feature-automatic-initialization-and-cleanup

I understand that when a new version of the driver gets released it will also appear in http://mongoc.org/libmongoc/current/init-cleanup.html#deprecated-feature-automatic-initialization-and-cleanup. Is my understanding correct?

@fgalan That's correct! Thanks for the contribution.