docs: fix descriptions

Ref: #1980
Ref: e8f94d2

Author: kgryte

lib/node_modules/@stdlib/math/base/special/gamma-lanczos-sum-expg-scaled/lib/native.js

@@ -26,7 +26,7 @@ var addon = require( './../src/addon.node' );
 // MAIN //
 
 /**
-* Calculates the Lanczos sum for the approximation of the gamma function (scaled by `exp(-g)`, where `g = 10.900511`.
+* 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

lib/node_modules/@stdlib/math/base/special/gamma-lanczos-sum-expg-scaled/src/main.c

@@ -60,7 +60,7 @@ static double rational_pq( const double x ) {
 // END: rational_pq
 
 /**
-* Calculates the Lanczos sum for the approximation of the gamma function (scaled by `exp(-g)`, where `g = 10.900511`.
+* Calculates the Lanczos sum for the approximation of the gamma function (scaled by `exp(-g)`, where `g = 10.900511`).
 *
 * @param x    input value
 * @return     Lanczos sum approximation