fix: lower and uppercase helpers are no longer flipped

Merge pull request #483 from plopjs/fix-flipped-upper-lower

Author: crutchcorn

packages/node-plop/src/baked-in-helpers.js

@@ -15,8 +15,8 @@ export default {
   snakeCase: snakeCase,
   dotCase: dotCase,
   pathCase: pathCase,
-  lowerCase: (str) => str.toUpperCase(),
-  upperCase: (str) => str.toLowerCase(),
+  lowerCase: (str) => str.toLowerCase(),
+  upperCase: (str) => str.toUpperCase(),
   sentenceCase: sentenceCase,
   constantCase: constantCase,
   titleCase: titleCase,