Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

Author: garydgregory

src/test/java/org/apache/commons/csv/CSVParserTest.java

@@ -587,7 +587,7 @@ void testEndOfFileBehaviorExcel() throws Exception {
     @ParameterizedTest
     @EnumSource(value = CSVFormat.Predefined.class, names = { "MySQL", "PostgreSQLCsv", "PostgreSQLText", "Oracle" })
     void testEscapedNullStringIsAValue(final CSVFormat.Predefined predefined) throws Exception {
-        // "\N" is the MySQL and PostgreSQL null marker, "\\N" is the value "\N", which is what the printer writes for it.
+        // For formats whose null string is "\\N" (e.g., MySQL, PostgreSQL Text, Oracle), a literal value "\\N" must be written as "\\\\N" so it is not read back as null.
         final CSVFormat format = predefined.getFormat();
         final StringWriter writer = new StringWriter();
         try (CSVPrinter printer = new CSVPrinter(writer, format)) {