test: fix test descriptions

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
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    status: passed
  - task: lint_editorconfig
    status: passed
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    status: na
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    status: na
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    status: na
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    status: na
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    status: na
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    status: na
  - task: lint_c_src
    status: na
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    status: na
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    status: na
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    status: na
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    status: na
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---

Author: Planeshifter

lib/node_modules/@stdlib/stats/array/nanrange-by/test/test.js

@@ -278,13 +278,13 @@ tape( 'if provided an empty array, the function returns `NaN` (accessors)', func
 	t.end();
 });
 
-tape( 'if provided an array containing a single element, the function returns the result of applying a provided callback function to that element', function test( t ) {
+tape( 'if provided an array containing a single element, the function returns 0.0', function test( t ) {
 	var v = nanrangeBy( [ 1.0 ], accessor );
 	t.strictEqual( v, 0.0, 'returns expected value' );
 	t.end();
 });
 
-tape( 'if provided an array containing a single element, the function returns the result of applying a provided callback function to that element (accessors)', function test( t ) {
+tape( 'if provided an array containing a single element, the function returns 0.0 (accessors)', function test( t ) {
 	var v = nanrangeBy( toAccessorArray( [ 1.0 ] ), accessor );
 	t.strictEqual( v, 0.0, 'returns expected value' );
 	t.end();

lib/node_modules/@stdlib/stats/array/range-by/test/test.js

@@ -276,13 +276,13 @@ tape( 'if provided an empty array, the function returns `NaN` (accessors)', func
 	t.end();
 });
 
-tape( 'if provided an array containing a single element, the function returns the result of applying a provided callback function to that element', function test( t ) {
+tape( 'if provided an array containing a single element, the function returns 0.0', function test( t ) {
 	var v = rangeBy( [ 1.0 ], accessor );
 	t.strictEqual( v, 0.0, 'returns expected value' );
 	t.end();
 });
 
-tape( 'if provided an array containing a single element, the function returns the result of applying a provided callback function to that element (accessors)', function test( t ) {
+tape( 'if provided an array containing a single element, the function returns 0.0 (accessors)', function test( t ) {
 	var v = rangeBy( toAccessorArray( [ 1.0 ] ), accessor );
 	t.strictEqual( v, 0.0, 'returns expected value' );
 	t.end();