bench: refactor to use string interpolation in wasm/base/arrays2ptrs

PR-URL: #9121
Ref: #8647
Reviewed-by: Athan Reines <kgryte@gmail.com>

Author: piyxsh31

lib/node_modules/@stdlib/wasm/base/arrays2ptrs/benchmark/benchmark.js

@@ -23,6 +23,7 @@
 var bench = require( '@stdlib/bench' );
 var zeros = require( '@stdlib/array/zeros' );
 var isArray = require( '@stdlib/assert/is-array' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var arrays2ptrs = require( './../lib' );
 
@@ -34,7 +35,7 @@ var Context = require( './fixtures/context.js' );
 
 // MAIN //
 
-bench( pkg+'::copy:num_arrays=2,len=10', function benchmark( b ) {
+bench( format( '%s::copy:num_arrays=2,len=10', pkg ), function benchmark( b ) {
 	var arrays;
 	var ctx;
 	var out;