Credence.Rule.NoRedundantEnumJoinSeparator
(credence v0.2.0)
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Readability rule: Detects Enum.join("") where the empty-string separator
is passed explicitly.
Enum.join/1 already defaults to "", so the argument adds visual noise
without changing behaviour.
Bad
graphemes |> Enum.join("")
Enum.join(list, "")Good
graphemes |> Enum.join()
Enum.join(list)