bench: refactor to use string interpolation in ndarray/slice

PR-URL: #11075
Ref: #8647
Reviewed-by: Athan Reines <kgryte@gmail.com>

Author: parthodas23

lib/node_modules/@stdlib/ndarray/slice/benchmark/benchmark.call_signatures.js

@@ -24,13 +24,14 @@ var bench = require( '@stdlib/bench' );
 var isndarrayLike = require( '@stdlib/assert/is-ndarray-like' );
 var MultiSlice = require( '@stdlib/slice/multi' );
 var baseEmpty = require( '@stdlib/ndarray/base/empty' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var slice = require( './../lib' );
 
 
 // MAIN //
 
-bench( pkg+'::2d,base,multislice', function benchmark( b ) {
+bench( format( '%s::2d,base,multislice', pkg ), function benchmark( b ) {
 	var values;
 	var v;
 	var s;
@@ -60,7 +61,7 @@ bench( pkg+'::2d,base,multislice', function benchmark( b ) {
 	b.end();
 });
 
-bench( pkg+'::2d,base,separate_arguments', function benchmark( b ) {
+bench( format( '%s::2d,base,separate_arguments', pkg ), function benchmark( b ) {
 	var values;
 	var v;
 	var i;
@@ -88,7 +89,7 @@ bench( pkg+'::2d,base,separate_arguments', function benchmark( b ) {
 	b.end();
 });
 
-bench( pkg+'::2d,base,array', function benchmark( b ) {
+bench( format( '%s::2d,base,array', pkg ), function benchmark( b ) {
 	var values;
 	var v;
 	var i;