Merge pull request EESSI#157 from boegel/fix_ingest_tarball_init

fix ingesting of init tarball

Author: bedroge

scripts/ingest-tarball.sh

@@ -222,7 +222,7 @@ version=$(echo "${tar_file_basename}" | cut -d- -f2)
 contents_type_dir=$(echo "${tar_file_basename}" | cut -d- -f3)
 tar_first_file=$(tar tf "${tar_file}" | head -n 1)
 tar_top_level_dir=$(echo "${tar_first_file}" | cut -d/ -f1)
-tar_contents_type_dir=$(echo "${tar_first_file}" | head -n 2 | tail -n 1 | cut -d/ -f2)
+tar_contents_type_dir=$(tar tf "${tar_file}" | head -n 2 | tail -n 1 | cut -d/ -f2)
 
 # Do some checks, and ingest the tarball
 check_repo_vars