fix(specfile_storage_path): enforce ending newline

lib/yashchiki/specfile_storage_path.py

@@ -35,3 +35,4 @@ for rspec in data:
         pkg = ss.package
         to_be_fetched.append(pkg)
         print(spack.mirror.mirror_archive_paths(pkg.fetcher, 'whatever').storage_path)
+    print("")