[fix] indexing module

name

lib/indexing.js

 const os = require('os');
 const fs = require('fs')
 
-module.exports = function timestampToDatetime(server, conf, program, params) {
+module.exports = function indexing(server, conf, program, params) {
     // Get monitDatasPath
     const mdb = program.mdb || "duniter_default";
     const monitDatasPath = os.homedir() + "/.config/duniter/" + mdb + "/currency-monit/";