Fixed Typo in `xf-addon:rebuild`

[kylerc]

Affected version

2.0.0 RC1

If xf-addon:rebuild fails (for example due to a version ID difference) the error message is

This add-on cannot be upgraded.

. I'd guess something along the lines of

This add-on cannot be rebuilt.

might make more sense?

 

[Chris D]

Thanks - yeah it was just using the wrong phrase.