Data update

Task/Convert-seconds-to-compound-duration/Langur/convert-seconds-to-compound-duration.langur

@@ -11,7 +11,7 @@ val d = fn(var sec) {
 for seconds in [7259, 86400, 6000000] {
     val dur = d(seconds)
     write "{{seconds:7}} sec = "
-    writeln join(", ", for[=[]] k of dur[1] {
+    writeln join(for[=[]] k of dur[1] {
         if dur[2][k] != 0: _for ~= ["{{dur[2][k]}} {{dur[1][k]}}"]
-    })
+    }, by=", ")
 }