bench: refactor to use string interpolation in array/uint8

PR-URL: #9518
Ref: #8647

Reviewed-by: Philipp Burckhardt <pburckhardt@outlook.com>

Author: shubham220420

lib/node_modules/@stdlib/array/uint8/benchmark/benchmark.every.length.js

@@ -23,6 +23,7 @@
 var bench = require( '@stdlib/bench' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var isBoolean = require( '@stdlib/assert/is-boolean' ).isPrimitive;
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var Uint8Array = require( './../lib' );
 
@@ -98,7 +99,7 @@ function main() {
 	for ( i = min; i <= max; i++ ) {
 		len = pow( 10, i );
 		f = createBenchmark( len );
-		bench( pkg+':every:len='+len, f );
+		bench( format( '%s:every:len=%d', pkg, len ), f );
 	}
 }