fix: benchmarks string interpolation

---
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: sagar7162

lib/node_modules/@stdlib/blas/ext/base/ndarray/gsort2ins/benchmark/benchmark.js

@@ -25,6 +25,7 @@ var uniform = require( '@stdlib/random/array/uniform' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var ndarray = require( '@stdlib/ndarray/base/ctor' );
 var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var gsort2ins = require( './../lib' );
 
@@ -110,7 +111,7 @@ function main() {
 	for ( i = min; i <= max; i++ ) {
 		len = pow( 10, i );
 		f = createBenchmark( len );
-		bench( pkg + ':len=' + len, f );
+		bench( format( '%s:len=%d', pkg, len ), f );
 	}
 }