[ruby-core:121037] [Ruby master Bug#20984] ENV.inspect is not encoding aware

14 Feb 2025

      Issue #20984 has been updated by k0kubun (Takashi Kokubun).

The conflict was relatively small (unlike [Bug #20982]), so I "think" I figured it out. Pushed the backport patch as commented above.

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Bug #20984: ENV.inspect is not encoding aware
https://bugs.ruby-lang.org/issues/20984#change-111945

* Author: nobu (Nobuyoshi Nakada)
* Status: Closed
* Backport: 3.1: REQUIRED, 3.2: DONE, 3.3: DONE, 3.4: DONE
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```console
$ ruby -e 'ENV.clear; ENV["\u{3042}"] = "a"; p ENV.inspect.encoding'
#<Encoding:BINARY (ASCII-8BIT)>
```

-- 
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