Fix path and es6 arrow function for return

Author: Christian Le

src/index.js

@@ -28,13 +28,13 @@ if (babelRootImport.default) {
 function getConfigFromBabel(start, babelrc = '.babelrc') {
     if (start === '/') return [];
 
-    const packageJSONPath = path.join(start, babelrc);
+    const packageJSONPath = path.join(start, 'package.json');
     const packageJSON = require(packageJSONPath);
     const babelConfig = packageJSON.babel;
     if (babelConfig) {
-        const pluginConfig = babelConfig.plugins.find(p => {
+        const pluginConfig = babelConfig.plugins.find(p => (
             p[0] === 'babel-root-import'
-        });
+        ));
         process.chdir(path.dirname(packageJSONPath));
         return pluginConfig[1];
     }