Output a formatted string for a non-fatal and non-internal error
#include <qvm/outpipe.h>
void qvm_logf(const unsigned int attr, const char *const fmt, ...)
This function outputs a string formatted in printf() style to the outpipes defined in the configuration. It is intended for errors that are non-fatal and non-internal; for those other types of errors (QVM_OUTAL_FATAL or QVM_OUTAL_INTERNAL), use qvm_fatal() instead.