Set GOPRIVATE env var (hashicorp#301)

enable GitHub code scanning workflow (hashicorp#295) (hashicorp#297)

Set path to main func in goreleaser

Merge pull request hashicorp#278 from hashicorp/v-xz-CVE-2020-16845

deps: Update github.com/ulikunitz/[email protected]

Merge pull request hashicorp#256 from hashicorp/f-umask-master-may-2020

umask final version against master (again)

Merge pull request hashicorp#227 from hashicorp/jbardin/head-accept-r…

…ange

don't attempt range request without object size

Merge pull request hashicorp#205 from hashicorp/fix-go112-failures

Prevent test failures for invalid SCP-style URLs in go 1.12

Merge pull request hashicorp#168 from hashicorp/type_checksum_error

add a public type for a checksum error