make checkstyle happy

Author: TheSnoozer

src/main/java/pl/project13/core/GitCommitIdPlugin.java

@@ -336,7 +336,7 @@ protected static void loadBuildData(@Nonnull Callback cb, @Nonnull Properties pr
   }
 
   protected static void loadGitData(@Nonnull Callback cb, @Nonnull Properties properties) throws GitCommitIdExecutionException {
-    var evaluateOnCommit = cb.getEvaluateOnCommit();
+    String evaluateOnCommit = cb.getEvaluateOnCommit();
     if ((evaluateOnCommit == null) || !allowedCharactersForEvaluateOnCommit.matcher(evaluateOnCommit).matches()) {
       throw new GitCommitIdExecutionException("suspicious argument for evaluateOnCommit, aborting execution!");
     }

src/main/java/pl/project13/core/GitCommitPropertyConstant.java

@@ -112,7 +112,7 @@ public class GitCommitPropertyConstant {
    *   <li>Hudson/Jenkins</li>
    *   <li>TeamCity</li>
    *   <li>Travis</li>
-   *   <li>Gitlab CI (Gitlab >8.10 & Gitlab CI >0.5)</li>
+   *   <li>Gitlab CI (Gitlab &gt;8.10 &amp; Gitlab CI &gt;0.5)</li>
    *   <li>Azure DevOps</li>
    *   <li>AWS CodeBuild</li>
    *   <li>Bitbucket Pipelines</li>
@@ -129,7 +129,7 @@ public class GitCommitPropertyConstant {
    * <ul>
    *     <li>TeamCity</li>
    *     <li>Travis</li>
-   *     <li>Gitlab CI (Gitlab >11.0)</li>
+   *     <li>Gitlab CI (Gitlab &gt;11.0)</li>
    *     <li>AWS CodeBuild</li>
    * </ul>
    */