function gammaLanczosSumExpGScaledf( x ) {
	return addon( x );
}
Calculates the Lanczos sum for the approximation of the gamma function (scaled by `exp(-g)`, where `g = 1.42845618724823`) as a single precision floating-point number.

@private
@param {number} x - input value
@returns {number} Lanczos sum approximation

@example
var v = gammaLanczosSumExpGScaledf( 4.0 );
// returns ~0.748

@example
var v = gammaLanczosSumExpGScaledf( -1.5 );
// returns ~0.193

@example
var v = gammaLanczosSumExpGScaledf( -0.5 );
// returns ~-0.558

@example
var v = gammaLanczosSumExpGScaledf( 0.5 );
// returns ~1.772

@example
var v = gammaLanczosSumExpGScaledf( 0.0 );
// returns Infinity

@example
var v = gammaLanczosSumExpGScaledf( NaN );
// returns NaN