test: fix expected value

Signed-off-by: Athan <[email protected]>

Author: kgryte

lib/node_modules/@stdlib/blas/ext/last-index-of/test/test.main.js

@@ -1060,7 +1060,7 @@ tape( 'the function supports specifying the `keepdims` option (column-major)', f
 	actual = lastIndexOf( x, 2.0, {
 		'keepdims': true
 	});
-	expected = [ [ 1 ], [ 1 ] ];
+	expected = [ [ -1 ], [ 1 ] ];
 
 	t.strictEqual( isndarrayLike( actual ), true, 'returns expected value' );
 	t.strictEqual( getDType( actual ), 'generic', 'returns expected value' );