test: update descriptions

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

Author: kgryte

lib/node_modules/@stdlib/stats/array/nanstdevch/test/test.js

@@ -320,7 +320,7 @@ tape( 'if provided an array containing a single element, the function returns `0
 	t.end();
 });
 
-tape( 'if provided a `correction` parameter which is greater than or equal to the input array length, the function returns `NaN`', function test( t ) {
+tape( 'if provided a `correction` parameter yielding a correction term less than or equal to `0`, the function returns `NaN`', function test( t ) {
 	var x;
 	var v;
 
@@ -335,7 +335,7 @@ tape( 'if provided a `correction` parameter which is greater than or equal to th
 	t.end();
 });
 
-tape( 'if provided a `correction` parameter which is greater than or equal to the input array length, the function returns `NaN` (accessors)', function test( t ) {
+tape( 'if provided a `correction` parameter yielding a correction term less than or equal to `0`, the function returns `NaN` (accessors)', function test( t ) {
 	var x;
 	var v;