I believe this was triggered by a commit from Bryan Higgins, but I am not sure.
It results in a fail due to lint in the vents....
Linting lib/blackberry10/platform.js ...[31mERROR[39m
[31m[[39m[33mL148[39m[31m:[39m[33mC13[39m[31m][39m
[33mW020[39m[31m:[39m [33mRead only.[39m
[31m[7mb[27m[39mlackberry = {};
[33mWarning: Task "jshint:src" failed. Use --force to continue.[39m
