Quote literal tokens in standard format specifier grammar (GH-102902)

miss-islington · encukou · web-flow · commit 4664a7cf6899 · 2023-03-31T05:52:52.000-07:00
Reported by Damian Dureck: https://mail.python.org/archives/list/docs@python.org/thread/UZTWBJIXC3MBKTHXVTIBPGDPKBNWZ5LN/ (cherry picked from commit f6405a4) Co-authored-by: Petr Viktorin <encukou@gmail.com>
diff --git a/Doc/library/string.rst b/Doc/library/string.rst
@@ -310,7 +310,7 @@ non-empty format specification typically modifies the result.
 The general form of a *standard format specifier* is:
 
 .. productionlist:: format-spec
-   format_spec: [[`fill`]`align`][`sign`][z][#][0][`width`][`grouping_option`][.`precision`][`type`]
+   format_spec: [[`fill`]`align`][`sign`]["z"]["#"]["0"][`width`][`grouping_option`]["." `precision`][`type`]
    fill: <any character>
    align: "<" | ">" | "=" | "^"
    sign: "+" | "-" | " "
