+ g_assert(g_queue_get_length(&reductionModules) > 0);
+ optionSyncReduction.arg= ((ReductionModule*)
+ g_queue_peek_head(&reductionModules))->name;
+ reductionModulesNames= g_string_new("Available modules: ");
+ g_queue_foreach(&reductionModules, &gfAppendReductionName,
+ reductionModulesNames);
+ // remove the last ", "
+ g_string_truncate(reductionModulesNames, reductionModulesNames->len - 2);
+ optionSyncReduction.argHelp= reductionModulesNames->str;
+