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F.46: add note regarding the return of main (see #1896)
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@@ -3749,6 +3749,7 @@ Declaring `main` (the one global `main` of a program) `void` limits portability.
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##### Note
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We mention this only because of the persistence of this error in the community.
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Note that despite its non-void return type, the main function does not require an explicit return statement.
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##### Enforcement
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