fix typo in test

Author: r2evans

inst/tests/tests.Rraw

@@ -20604,7 +20604,7 @@ test(2297.03, format_list_item(data.frame(a=1)[,0]),                  output = "
 test(2297.04, format_list_item(data.frame(a=1, b=2)[0,,drop=FALSE]),  output = "<data.frame\\[0x2]>")
 test(2297.06, format_list_item(data.table(a=1)),                      output = "<data.table\\[1x1]>")
 test(2297.07, format_list_item(data.table(a=numeric())),              output = "<data.table\\[0x1]>")
-test(2297.08, format_list_item(data.table(),                          output = "<data.table\\[0x0]>")
+test(2297.08, format_list_item(data.table()),                         output = "<data.table\\[0x0]>")
 test(2297.09, format_list_item(data.table(a=numeric(), b=numeric())), output = "<data.table\\[0x2]>")
 test(2297.10, data.table(a=1),                                        output = " *a\n1: *1")
 test(2297.11, data.table(a=list(data.frame(b=1))),                    output = " *a\n1: <data.frame\\[1x1]>")