bench: refactor to use string interpolation in array/base/broadcasted-quaternary2d

---
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: ksuraev

lib/node_modules/@stdlib/array/base/broadcasted-quaternary2d/benchmark/benchmark.js

@@ -28,6 +28,7 @@ var floor = require( '@stdlib/math/base/special/floor' );
 var filled2dBy = require( '@stdlib/array/base/filled2d-by' );
 var zeros2d = require( '@stdlib/array/base/zeros2d' );
 var numel = require( '@stdlib/ndarray/base/numel' );
+var format = require( '@stdlib/string/format' );
 var add = require( '@stdlib/number/float64/base/add4' );
 var pkg = require( './../package.json' ).name;
 var bquaternary2d = require( './../lib' );
@@ -123,7 +124,7 @@ function main() {
 		N = floor( pow( pow( 10, i ), 1.0/2.0 ) );
 		sh = [ N, N ];
 		f = createBenchmark( sh );
-		bench( pkg+'::square_matrix:size='+numel( sh ), f );
+		bench( format( '%s::square_matrix:size=%d', pkg, numel( sh ) ), f );
 	}
 }