func (l *Log) SetAlsoLogToStderr(f bool) {
	l.mu.Lock()
	defer l.mu.Unlock()
	l.alsoToStderr = f

}
func (l *Log) SetAlsoLogToStderr(f bool) {
	l.mu.Lock()
	defer l.mu.Unlock()
	l.alsoToStderr = f

}
func ( l * Log ) SetAlsoLogToStderr ( f bool ) { l . mu . Lock ( ) defer l . mu . Unlock ( ) l . alsoToStderr = f }
// SetAlsoLogToStderr sets the flag that, if true, logs to standard error as well as files
SetAlsoLogToStderr sets the flag that if true logs to standard error as well as files