Test utility methods don't need to be public

Author: garydgregory

src/test/java/org/apache/commons/cli/SolrCliTest.java

@@ -137,7 +137,7 @@ class SolrCliTest {
             .build();
     // @formatter:on
 
-    public static String getDefaultSolrUrl() {
+    private static String getDefaultSolrUrl() {
         final String scheme = "http";
         final String host = "localhost";
         final String port = "8983";

src/test/java/org/apache/commons/cli/SolrCreateToolTest.java

@@ -29,7 +29,7 @@ Licensed to the Apache Software Foundation (ASF) under one or more
 
 public class SolrCreateToolTest {
 
-    public List<Option> getOptions() {
+    private List<Option> getOptions() {
         // @formatter:off
         return Arrays.asList(
             SolrCliTest.OPTION_ZKHOST,