fix: add randu import and fix line lengths in both benchmark files

Author: Amansingh0807

lib/node_modules/@stdlib/math/base/special/croundnf/benchmark/benchmark.js

@@ -80,7 +80,9 @@ function createBenchmark( len ) {
 
 		b.tic();
 		for ( i = 0; i < b.iterations; i++ ) {
-			y = croundnf( new Complex64( xre[ i%len ], xim[ i%len ] ), n[ i%len ] );
+			y = croundnf(
+				new Complex64( xre[ i%len ], xim[ i%len ] ), n[ i%len ]
+			);
 			if ( isnanf( realf( y ) ) ) {
 				b.fail( 'should not return NaN' );
 			}

lib/node_modules/@stdlib/math/base/special/croundnf/benchmark/benchmark.native.js

@@ -22,6 +22,7 @@
 
 var resolve = require( 'path' ).resolve;
 var bench = require( '@stdlib/bench' );
+var randu = require( '@stdlib/random/base/randu' );
 var uniform = require( '@stdlib/random/array/uniform' );
 var filledarrayBy = require( '@stdlib/array/filled-by' );
 var floor = require( '@stdlib/math/base/special/floor' );
@@ -73,7 +74,7 @@ function createBenchmark( len ) {
 	* @returns {integer} pseudorandom integer
 	*/
 	function discreteUniform() {
-		return floor( ( Math.random()*10.0 ) - 5.0 );
+		return floor( ( randu()*10.0 ) - 5.0 );
 	}
 
 	/**