Fix parameter's descriptions
diff --git a/src/main/java/org/apache/commons/csv/CSVFormat.java b/src/main/java/org/apache/commons/csv/CSVFormat.java
index 580b462..eeffd19 100644
--- a/src/main/java/org/apache/commons/csv/CSVFormat.java
+++ b/src/main/java/org/apache/commons/csv/CSVFormat.java
@@ -1528,14 +1528,14 @@
* @param ignoreSurroundingSpaces {@code true} when whitespaces enclosing values should be ignored.
* @param ignoreEmptyLines {@code true} when the parser should skip empty lines.
* @param recordSeparator the line separator to use for output.
- * @param nullString the line separator to use for output.
- * @param headerComments the comments to be printed by the Printer before the actual CSV data..
+ * @param nullString the String to convert to and from {@code null}.
+ * @param headerComments the comments to be printed by the Printer before the actual CSV data.
* @param header the header.
* @param skipHeaderRecord if {@code true} the header row will be skipped.
* @param allowMissingColumnNames if {@code true} the missing column names are allowed when parsing the header line.
* @param ignoreHeaderCase if {@code true} header names will be accessed ignoring case when parsing input.
* @param trim if {@code true} next record value will be trimmed.
- * @param trailingDelimiter if {@code true} the trailing delimiter wil be added before record separator (if set)..
+ * @param trailingDelimiter if {@code true} the trailing delimiter wil be added before record separator (if set).
* @param autoFlush if {@code true} the underlying stream will be flushed before closing.
* @param duplicateHeaderMode the behavior when handling duplicate headers.
* @param trailingData whether reading trailing data is allowed in records, helps Excel compatibility.
