Update test description

Author: kgryte

lib/node_modules/@stdlib/plot/test/test.js

@@ -33,7 +33,7 @@ tape( 'main export is a function', function test( t ) {
 	t.end();
 });
 
-tape( 'the export is an alias for a plot constructor', function test( t ) {
+tape( 'the main export is a plot constructor', function test( t ) {
 	t.strictEqual( plot, Plot, 'is alias' );
 	t.end();
 });