fix(JDBCTableWriterFaresV2Test.java): Replaced Windows new line separ…

…ator with OS derived reference

Test should now work on Linux

src/test/java/com/conveyal/gtfs/loader/JDBCTableWriterFaresV2Test.java

@@ -132,7 +132,7 @@ private static Stream<Arguments> createEntityInput() throws IOException {
     private static String getEntityFromFile(String fileName) throws IOException {
         return TestUtils
             .getTestResourceAsString("fares-v2-json-entities/" + fileName)
-            .replace("\r\n", "")
+            .replace(System.lineSeparator(), "")
             .replace(" ", "")
             .replace("\"\"", "null");
     }