update rustc cmdargs markdown section

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HTG-YT 2021-08-18 09:05:48 +08:00 committed by Mara Bos
parent 388d90ac4c
commit 4bed11a109

@ -93,7 +93,7 @@ This informs `rustc` of the name of your crate.
<a id="option-edition"></a>
## `--edition`: specify the edition to use
This flag takes a value of `2015` or `2018`. The default is `2015`. More
This flag takes a value of `2015`, `2018` or `2021`. The default is `2015`. More
information about editions may be found in the [edition guide].
[edition guide]: ../edition-guide/introduction.html