bench: add opts for halfnormal-stdev

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
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    status: passed
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---

Author: Lokeshranjan8

lib/node_modules/@stdlib/stats/base/dists/halfnormal/stdev/benchmark/benchmark.js

@@ -32,12 +32,14 @@ var stdev = require( './../lib' );
 
 bench( pkg, function benchmark( b ) {
 	var sigma;
+	var opts;
 	var y;
 	var i;
 
-	sigma = uniform( 100, EPS, 20.0, {
+	opts = {
 		'dtype': 'float64'
-	});
+	};
+	sigma = uniform( 100, EPS, 20.0, opts );
 
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {

lib/node_modules/@stdlib/stats/base/dists/halfnormal/stdev/benchmark/benchmark.native.js

@@ -42,12 +42,14 @@ var opts = {
 
 bench( format( '%s::native', pkg ), opts, function benchmark( b ) {
 	var sigma;
+	var opts;
 	var y;
 	var i;
 
-	sigma = uniform( 100, EPS, 20.0, {
+	opts = {
 		'dtype': 'float64'
-	});
+	};
+	sigma = uniform( 100, EPS, 20.0, opts );
 
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {