fix for jq-1.5

.prepare_docs

@@ -36,4 +36,4 @@ cp "${redoc_bundle_file}" "${branch_docs_dir}/index.html"
 
 # Create a JSON file containing a list of all branches with docs (we'll
 # have an index page that renders the list).
-ls "${BRANCHES_DIR}" | jq -R | jq -sc > "${DIST_DIR}/branches.json"
+ls "${BRANCHES_DIR}" | jq -Rc '.' | jq -sc '.' > "${DIST_DIR}/branches.json"