style: fix spelling

Signed-off-by: Andreas Reichel <andreas@manticore-projects.com>

src/test/java/net/sf/jsqlparser/statement/select/BigQueryTest.java

@@ -0,0 +1,28 @@
+package net.sf.jsqlparser.statement.select;
+
+import org.junit.jupiter.api.Test;
+
+public class BigQueryTest {
+
+    @Test
+    void testTrailingComma() {
+
+        // allows trailing commas after the last select items
+        String sqlStr = "WITH\n" +
+                "  Products AS (\n" +
+                "    SELECT 'shirt' AS product_type, 't-shirt' AS product_name, 3 AS product_count UNION ALL\n" +
+                "    SELECT 'shirt', 't-shirt', 8 UNION ALL\n" +
+                "    SELECT 'shirt', 'polo', 25 UNION ALL\n" +
+                "    SELECT 'pants', 'jeans', 6\n" +
+                "  )\n" +
+                "SELECT\n" +
+                "  product_type,\n" +
+                "  product_name,\n" +
+                "  SUM(product_count) AS product_sum,\n" +
+                "  GROUPING(product_type) AS product_type_agg,\n" +
+                "  GROUPING(product_name) AS product_name_agg,\n" +
+                "FROM Products\n" +
+                "GROUP BY GROUPING SETS(product_type, product_name, ())\n" +
+                "ORDER BY product_name, product_type";
+    }
+}