fix spotlessApply

Signed-off-by: Jialiang Liang <jiallian@amazon.com>

Author: RyanL1997

ppl/src/main/java/org/opensearch/sql/ppl/utils/PPLQueryDataAnonymizer.java

@@ -72,8 +72,8 @@
 import org.opensearch.sql.ast.tree.Patterns;
 import org.opensearch.sql.ast.tree.Project;
 import org.opensearch.sql.ast.tree.RangeBin;
-import org.opensearch.sql.ast.tree.Regex;
 import org.opensearch.sql.ast.tree.RareTopN;
+import org.opensearch.sql.ast.tree.Regex;
 import org.opensearch.sql.ast.tree.Relation;
 import org.opensearch.sql.ast.tree.Rename;
 import org.opensearch.sql.ast.tree.Reverse;
@@ -448,7 +448,7 @@ public String visitRegex(Regex node, String context) {
     String child = node.getChild().get(0).accept(this, context);
     String operator = node.isNegated() ? "!=" : "=";
     String pattern = MASK_LITERAL;
-    
+
     if (node.getField() != null) {
       String field = visitExpression(node.getField());
       return StringUtils.format("%s | regex %s%s%s", child, field, operator, pattern);

ppl/src/test/java/org/opensearch/sql/ppl/utils/PPLQueryDataAnonymizerTest.java

@@ -514,8 +514,7 @@ public void testPatterns() {
   @Test
   public void testRegex() {
     assertEquals("source=t | regex field=***", anonymize("source=t | regex field='pattern'"));
-    assertEquals(
-        "source=t | regex field!=***", anonymize("source=t | regex field!='pattern'"));
+    assertEquals("source=t | regex field!=***", anonymize("source=t | regex field!='pattern'"));
     assertEquals("source=t | regex ***", anonymize("source=t | regex 'pattern'"));
     assertEquals(
         "source=t | regex email=*** | fields + email",