package launchpad.net/go-xdg/v0 uses insecure protocol

[rickrich]

$ go get -u github.com/google/cloud-print-connector/...
package launchpad.net/go-xdg/v0: cannot download, http://bazaar.launchpad.net/~chipaca/go-xdg/v0/ uses insecure protocol

$ go get -insecure -u github.com/google/cloud-print-connector/...
package launchpad.net/go-xdg/v0: directory "/home/rick/go/src/launchpad.net/go-xdg/v0" uses bzr, but parent "/home/rick/go/src/launchpad.net/go-xdg" uses bzr

Last one is: Ref: golang/go#22157

Please fix!