ci: after 5ce63d52 the linux bindist for doc-tarball has changed name
@bgamari I think this is correct. I gleaned the updated tarball name from the artifacts produced by the -debug job: https://gitlab.haskell.org/adamse/ghc/-/jobs/268137/artifacts/browse.
Currently it fails:
$ if [ ! -f "$LINUX_BINDIST" ]; then # collapsed multi-line command Error: ghc-x86_64-deb9-linux.tar.xz does not exist. Did the Debian 9 job fail?