Fix crash in static database destruction due to unsafe lambda capture #241
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Crash would occur when a static object holding a shared_ptr<sqlite3> object was destroyed due to capturing local variables by value using [=] in the shared_ptr's custom deleter lambda. The deleter doesn't use any captured variables so use an empty clause instead.
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Crash would occur at exit when a static shared_ptr object was destroyed due to capturing local variables by value using [=] in the shared_ptr's custom deleter lambda. The deleter doesn't use any captured variables so use an empty clause instead.