Use format function for benchmark labels

Signed-off-by: Rohit R Bhat <bhatrr2021@gmail.com>

Author: JavaTypedScript

lib/node_modules/@stdlib/array/base/accessor-getter/benchmark/benchmark.js

@@ -33,6 +33,7 @@ var imag = require( '@stdlib/complex/float64/imag' );
 var realf = require( '@stdlib/complex/float32/real' );
 var imagf = require( '@stdlib/complex/float32/imag' );
 var dtype = require( '@stdlib/array/dtype' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var getter = require( './../lib' );
 
@@ -70,7 +71,7 @@ bench( pkg, function benchmark( b ) {
 	b.end();
 });
 
-bench( pkg+':dtype=complex128', function benchmark( b ) {
+bench( format( '%s:dtype=complex128', pkg ), function benchmark( b ) {
 	var arr;
 	var buf;
 	var get;
@@ -96,7 +97,7 @@ bench( pkg+':dtype=complex128', function benchmark( b ) {
 	b.end();
 });
 
-bench( pkg+':dtype=complex64', function benchmark( b ) {
+bench( format( '%s:dtype=complex64', pkg ), function benchmark( b ) {
 	var arr;
 	var buf;
 	var get;