Fix travis's syntax conventions errors

index.js

@@ -22,7 +22,7 @@ const DEFAULT_OPTIONS = {
   dir: undefined,
   dirs: [path.join(process.cwd(), 'locales')],
   functionName: '__',
-  functionnName: '__n'
+  functionnName: '__n',
 };
 
 module.exports = function (app, options) {
@@ -137,7 +137,6 @@ module.exports = function (app, options) {
 
   app[functionName] = gettext;
 
-  
   function gettextn(locale, key, count, value) {
     if (arguments.length === 0 || arguments.length === 1) {
       // __n()
@@ -158,25 +157,25 @@ module.exports = function (app, options) {
     //**************************************************************//
     // Directly adapted from __n function of i18n module :
     // https://github.com/mashpie/i18n-node/blob/master/i18n.js
-    var p;
+    let p;
     // create a new Plural for locale
     // and try to cache instance
     if (PluralsForLocale[locale]) {
       p = PluralsForLocale[locale];
     } else {
     // split locales with a region code
-      var lc = locale.toLowerCase().split(/[_-\s]+/)
+      const lc = locale.toLowerCase().split(/[_-\s]+/)
         .filter(function(el){ return true && el; });
       // take the first part of locale, fallback to full locale
       p = MakePlural[lc[0] || locale];
       PluralsForLocale[locale] = p;
     }
     // fallback to 'other' on case of missing translations
-    let text = resource[key+"."+p(count)] || resource[key+".other"];
+    let text = resource[key + '.' + p(count)] || resource[key + '.other'];
     //**************************************************************//
 
     if (text === undefined && isObject(key)) {
-      text = key[p(count)] || key["other"]; 
+      text = key[p(count)] || key['other'];
     }
 
     if (text === undefined) {