[3.11] gh-116881: Remove erroneous or redundant grammar NULL (GH-116885) #116952
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In Lexical Analysis f-strings section, NULL in the description
of 'literal character' means '\0'. In the format_spec grammar
production, it is wrong with that meaning and redundant if
instead interpreted as . Remove it there.
(cherry picked from commit 4e45c6c)
Co-authored-by: Terry Jan Reedy tjreedy@udel.edu
📚 Documentation preview 📚: https://cpython-previews--116952.org.readthedocs.build/