Fix issue building all outputs rather than just default (#521)
Fix issue building all outputs rather than just default (#521)

* Fix bug in rule outputs

* Linting

smparkes/rules_scala,bazelbuild/rules_scala,bazelbuild/rules_scala,bazelbuild/rules_scala,ianoc/rules_scala,smparkes/rules_scala,ianoc/rules_scala,ianoc/rules_scala,smparkes/rules_scala