chore: Adjust tests

When writing output, `[<<"some binary">>, <<"\n">>]` and `<<"some
binary\n">>` are indistinguishable, so I tihnk it feels a bit weird to
write them in a particular way in the tests.

Author: kivra-marfro

src/jsonformat.erl

@@ -316,16 +316,16 @@ meta_with_test() ->
 newline_test() ->
     ConfigDefault = #{new_line => true},
     ?assertEqual(
-        [<<"{\"level\":\"alert\",\"text\":\"derp\"}">>, <<"\n">>],
+        <<"{\"level\":\"alert\",\"text\":\"derp\"}\n">>,
         iolist_to_binary(format(#{level => alert, msg => {string, "derp"}, meta => #{}}, ConfigDefault))
     ),
     ConfigCRLF = #{
         new_line_type => crlf,
         new_line => true
     },
     ?assertEqual(
-        [<<"{\"level\":\"alert\",\"text\":\"derp\"}">>, <<"\r\n">>],
-        format(#{level => alert, msg => {string, "derp"}, meta => #{}}, ConfigCRLF)
+        <<"{\"level\":\"alert\",\"text\":\"derp\"}\r\n">>,
+        iolist_to_binary(format(#{level => alert, msg => {string, "derp"}, meta => #{}}, ConfigCRLF))
     ).
 
 -endif.