fix typo, improve warning message

[EricClaeys]

No description provided.

[linuxkidd]

The code looks fine, but there still appear to be some minor spacing issues. At least, in the web UI review of the diff's. I think we can approve this, then deal with re-spacing ( via tabs ) in another PR.

I'll leave the final merge decision to @EricClaeys or @ckuethe

[ckuethe]

Ship it.

[ckuethe]

Approved. You can merge it after fixing the two typos I highlighted.

[EricClaeys]

Consecutive errors is correct. When a successful image is taken it sets numErrors = 0;