Add convenience utility to format paths

lofar-cwl/steps/utils.js

@@ -22,3 +22,9 @@ function get_losoto_config(step_name) {
     }
     return par
 }
+
+function concatenate_path(object_list){
+    object_list.forEach(function (x, index, arr) {arr[index] = x.path;});
+    return '[' + object_list.join(',') + ']'
+    
+}
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