Bugfix: Salmon meta info output

src/salmon.snake

@@ -37,7 +37,8 @@ rule salmon_quant_se:
     r1 = salmon_input_r1,
     index = rules.salmon_index.output
   output:
-    config['dirs']['quant'] + '/{sample}/quant.sf'
+    config['dirs']['quant'] + '/{sample}/quant.sf',
+    config['dirs']['quant'] + '/{sample}/aux_info/meta_info.json'
   params:
     flags = config['salmon']['quant_flags'] if 'quant_flags' in config.get('salmon', {}) else ''
   log:
@@ -72,7 +73,7 @@ rule salmon_stats:
 
       column_values = [find_nested_key(data, k.split(':')) for k in params.columns]
       keep_column = [not x for x in map(lambda x: x is None or isinstance(x, dict), column_values)]
-      
+
       sample_row = dict(zip([params.columns[i] for i in range(len(params.columns)) if keep_column[i]], [column_values[i] for i in range(len(column_values)) if keep_column[i]]))
       stats.append(sample_row)