fix build errors - style related

Author: andyrichardson

lib/grammar-utils/java.js

@@ -40,10 +40,10 @@ export default {
     const filenameRemoved = projectRemoved.replace(`/${context.filename}`, '');
 
     // File is in root of src directory - no package
-    if(filenameRemoved == projectRemoved){
-      return "";
+    if (filenameRemoved === projectRemoved) {
+      return '';
     }
 
-    return filenameRemoved + "."
+    return '${filenameRemoved}.';
   },
 };