Fix line numbers display for > 1000

- Fixes #93

Author: adangel

History.md

@@ -4,6 +4,7 @@
 
 ## Fixed Issues
 
+*   [#93](https://github.com/pmd/pmd-regression-tester/issues/93): Line numbers > 1000 are not displayed correctly
 *   [#96](https://github.com/pmd/pmd-regression-tester/issues/96): Fix failing integration tests
 
 ## External Contributions

resources/js/code-snippets.js

@@ -15,11 +15,11 @@
 
     // returns text, not html
     function formatLineNumber(number) {
-        let prefix;
+        let prefix = '';
         if (number < 10) {
-            prefix =  nbsp.repeat(3);
+            prefix = nbsp.repeat(3);
         } else if (number < 100) {
-            prefix =  nbsp.repeat(2);
+            prefix = nbsp.repeat(2);
         } else if (number < 1000) {
             prefix = nbsp;
         }