Apply suggestions from code review

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

Author: kgryte

lib/node_modules/@stdlib/blas/ext/base/gvander/lib/base.js

@@ -120,11 +120,10 @@ function gvander( mode, M, N, x, strideX, offsetX, out, strideOut1, strideOut2,
 
 	// Increasing: column j contains x^j
 	if ( mode > 0 ) {
+		gfill( S0, 1.0, out, strideOut1, offsetOut );
 		do0 = strideOut1;
 		do1 = strideOut2 - ( S0*strideOut1 );
-		io = offsetOut;
-		gfill( S0, 1.0, out, strideOut1, offsetOut );
-		io += strideOut2;
+		io = offsetOut + strideOut2;
 		for ( i1 = 1; i1 < S1; i1++ ) {
 			ix = offsetX;
 			for ( i0 = 0; i0 < S0; i0++ ) {