Add ESLint (#93)

Author: TheDancingCode

.eslintrc.json

@@ -0,0 +1,14 @@
+{
+  "env": {
+    "node": true,
+    "mocha": true
+  },
+  "globals": {
+    "expect": true
+  },
+  "extends": ["eslint:recommended", "prettier"],
+  "rules": {
+    "no-console": "off",
+    "no-empty": ["error", { "allowEmptyCatch": true }]
+  }
+}

lib/codecov.js

@@ -156,7 +156,7 @@ var sendToCodecovV2 = function(
         Accept: 'text/plain',
       },
     },
-    function(err, response, result) {
+    function(err, response) {
       if (err || response.statusCode !== 200) {
         console.log('    ' + (err || response.body))
         return response
@@ -210,7 +210,7 @@ var sendToCodecovV3 = function(
               'x-amz-acl': 'public-read',
             },
           },
-          function(err, response, result) {
+          function(err) {
             if (err) {
               sendToCodecovV2(
                 codecov_endpoint,