fix

lib/snippets/copyright/index.ts

@@ -29,25 +29,27 @@ export default class Copyright implements Snippet {
     if (!this.options)
       await this.gather_options ();
 
+    const options = this.options as CopyrightOptions;
+
     await FileMapper.map_all_files (
       this.cwd,
       this.fix_file_license.bind (this)
     );
 
     modify_json ((json) => {
-      json.author = `${this.options.author} <${this.options.email}>`;
+      json.author = `${options.author} <${options.email}>`;
-      json.license = this.options.has_license
+      json.license = options.has_license
-        ? this.options.license
+        ? options.license
         : 'UNLICENSED';
     });
 
-    if (this.options.has_license) {
+    if (options.has_license) {
       await fs.writeFile (
         path.join (cwd, 'LICENSE'),
-        getLicense (this.options.license, {
+        getLicense (options.license, {
-          name:    this.options.author,
+          name:    options.author,
-          email:   this.options.email,
+          email:   options.email,
-          project: this.options.software
+          project: options.software
         })
       );
     }