kvflag: add TestStringSlice_Set
kvflag: add TestStringSlice_Set

rnaveiras/packer,hashicorp/packer,hashicorp/packer,grubernaut/packer,ricardclau/packer,rnaveiras/packer,rnaveiras/packer,grubernaut/packer,pecigonzalo/packer,pecigonzalo/packer,mitchellh/packer,hashicorp/packer,grubernaut/packer,grubernaut/packer,grubernaut/packer,ricardclau/packer,rnaveiras/packer,rnaveiras/packer,hashicorp/packer,grubernaut/packer,pecigonzalo/packer,ricardclau/packer,pecigonzalo/packer,mitchellh/packer,ricardclau/packer,mitchellh/packer,ricardclau/packer,mitchellh/packer,ricardclau/packer,mitchellh/packer,rnaveiras/packer