David P. Sicilia 2145a7bdcc Move has_formatter into the public fmt namespace. (#1407) ... * Move has_formatter into the public fmt namespace. This will allow users to do SFINAE-friendly checks for the formattability of a type. Fixes #1369		2019-11-14 07:08:24 -08:00
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fmt	Move has_formatter into the public fmt namespace. (#1407)	2019-11-14 07:08:24 -08:00