space separated, not newline separated

Author: baileympearson

node/sign_node_package/action.yml

@@ -67,8 +67,7 @@ runs:
             .map(({ name, parentPath }) => join(parentPath, name))
             .filter(file => file.includes('build-') && file.includes('.tar.gz'));
 
-          process.stdout.write(tarFiles.join('\n'));
-          process.stdout.write('\n')
+          process.stdout.write(tarFiles.join(' '));
         EOF
 
         FILENAMES=$(node ./script.js .)