function gammaLanczosSumExpGScaled( x ) {
	return addon( x );
}
Calculates the Lanczos sum for the approximation of the gamma function (scaled by `exp(-g)`, where `g = 10.900511`).

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

@example
var v = gammaLanczosSumExpGScaled( 4.0 );
// returns ~0.018

@example
var v = gammaLanczosSumExpGScaled( -1.5 );
// returns ~25.337

@example
var v = gammaLanczosSumExpGScaled( -0.5 );
// returns ~-12.911

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

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

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