refactor: remove unnecessary mergeWith in lib/load-parser-config.js

Author: pvdlg

lib/load-parser-config.js

@@ -1,6 +1,5 @@
 const {promisify} = require('util');
 const importFrom = require('import-from');
-const {mergeWith} = require('lodash');
 const conventionalChangelogAngular = require('conventional-changelog-angular');
 
 /**
@@ -29,9 +28,5 @@ module.exports = async ({preset, config, parserOpts}) => {
     loadedConfig = await loadedConfig;
   }
 
-  return mergeWith(
-    {},
-    !preset && !config && parserOpts ? parserOpts : {...loadedConfig.parserOpts, ...parserOpts},
-    (value, source) => (Array.isArray(value) ? source : undefined)
-  );
+  return !preset && !config && parserOpts ? parserOpts : {...loadedConfig.parserOpts, ...parserOpts};
 };