command/import: fix TestImport_initializationErrorShouldUnlock
command/import: fix TestImport_initializationErrorShouldUnlock

This was checking for a specific output error message which has changed
due to our new provider installer/selection approach.

pryorda/terraform,pdecat/terraform,VladRassokhin/terraform,hashicorp/terraform,hashicorp/terraform,tommynsong/terraform,heimweh/terraform,ewbankkit/terraform,apparentlymart/terraform,heimweh/terraform,apparentlymart/terraform,pryorda/terraform,heimweh/terraform,ewbankkit/terraform,apparentlymart/terraform,apparentlymart/terraform,ewbankkit/terraform,VladRassokhin/terraform,rnaveiras/terraform,pdecat/terraform,heimweh/terraform,pdecat/terraform,rnaveiras/terraform,tommynsong/terraform,tommynsong/terraform,VladRassokhin/terraform,pdecat/terraform,hashicorp/terraform,rnaveiras/terraform,pryorda/terraform,ewbankkit/terraform,apparentlymart/terraform,heimweh/terraform,VladRassokhin/terraform