fixing test with csv

Author: Jolanrensen

core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/io/csv.kt

@@ -332,7 +332,7 @@ public fun AnyFrame.writeCSV(
     format: CSVFormat = CSVFormat.DEFAULT,
 ) {
     format.print(writer).use { printer ->
-        if (format.getSkipHeaderRecord() == false) {
+        if (!format.skipHeaderRecord) {
             printer.printRecord(columnNames())
         }
         forEach {

core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/io/CsvTests.kt

@@ -234,18 +234,18 @@ class CsvTests {
     }
 
     @Test
-    fun `write csv whitout header produce correct file`() {
+    fun `write csv without header produce correct file`() {
         val df = dataFrameOf("a", "b", "c")(
             1, 2, 3,
-            1, 3, 2
+            1, 3, 2,
         )
         df.writeCSV(
             "src/test/resources/without_header.csv",
-            CSVFormat.DEFAULT.withSkipHeaderRecord()
+            CSVFormat.DEFAULT.withSkipHeaderRecord(),
         )
         val producedFile = File("src/test/resources/without_header.csv")
         producedFile.exists() shouldBe true
-        producedFile.readText() shouldBe "a,b,c\r\n1,2,3\r\n1,3,2\r\n"
+        producedFile.readText() shouldBe "1,2,3\r\n1,3,2\r\n"
         producedFile.delete()
     }