Apply suggestions from code review

Signed-off-by: Athan <kgryte@gmail.com>

Author: kgryte

lib/node_modules/@stdlib/blas/ext/base/dnanasum/benchmark/c/benchmark.length.c

@@ -122,8 +122,7 @@ static double benchmark1( int iterations, int len ) {
 	if ( v != v ) {
 		printf( "should not return NaN\n" );
 	}
-
-	free(x);
+	free( x );
 	return elapsed;
 }
 
@@ -162,7 +161,7 @@ static double benchmark2( int iterations, int len ) {
 	if ( v != v ) {
 		printf( "should not return NaN\n" );
 	}
-	free(x);
+	free( x );
 	return elapsed;
 }