Bug#954852: cmake depends on libarchive13 3.3.3, but only 3.2.2 is available

[Junya Hayashi]

I could resolve the issue by using libarchive13 in stretch-backports-sloppy.

$ sudo apt install -t stretch-backports-sloppy libarchive13
$ sudo apt install -t stretch-backports cmake

thank you.

Junya Hayashi