When trying to upload an unexisting file to a pod,
kubectl currently doesn't print any error message
and terminates with a zero exit code.
This adds a check and fails explicitly in such cases.
Kubernetes-commit: 3fa5b504423f169723b911547cd22ae85da168e0
cleanup: use i18n.T only on string literals
cleanup: sort imports
Add i18n dependency for wait.go
Remove translation on envResource
cleanup: translate string instead of variable
cleanup: sort imports
cleanup: translate string literal only
Kubernetes-commit: cc8428566ea7160c5b20410a1bee53ca7ddb998e
Bilal Amarni
Karl 'NaN' Wikström
knight42
Maciej Szulik
Sean Sullivan