Fix logging when linked with C++ binary #16
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… (ie. for testing or benchmarking) the strftime cause a sigsegv, switching to a plain sprintf because strfime it's used in a real basic way
…st (or neither checked) by sprintf
…tamp function anymore
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Invoking strftime from a C library that gets linked to a C++ binary triggers a sigsegv, a memory violation occurs causing a fatal crash.
This PR switch to use sprintf to build the timestamp printed out with the logs because the usage is pretty basic and nothing advanced as strftime is required.