test: use looser check to handle top-level examples which has index.mjs

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: na
  - task: lint_package_json
    status: na
  - task: lint_repl_help
    status: na
  - task: lint_javascript_src
    status: na
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: passed
  - task: lint_javascript_benchmarks
    status: na
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: na
  - task: lint_c_examples
    status: na
  - task: lint_c_benchmarks
    status: na
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: na
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---

Author: Planeshifter

lib/node_modules/@stdlib/fs/read-dir/test/test.cli.js

@@ -23,6 +23,7 @@
 var resolve = require( 'path' ).resolve;
 var exec = require( 'child_process' ).exec;
 var tape = require( 'tape' );
+var contains = require( '@stdlib/assert/contains' );
 var IS_BROWSER = require( '@stdlib/assert/is-browser' );
 var IS_WINDOWS = require( '@stdlib/assert/is-windows' );
 var EXEC_PATH = require( '@stdlib/process/exec-path' );
@@ -156,7 +157,7 @@ tape( 'the command-line interface reads the entire contents of a directory', opt
 			t.fail( error.message );
 		} else {
 			str = stdout.toString();
-			t.strictEqual( str, 'index.js\n', 'prints directory contents to `stdout`' );
+			t.strictEqual( contains( str, 'index.js\n' ), true, 'prints directory contents to `stdout`' );
 			t.strictEqual( stderr.toString(), '', 'does not print to `stderr`' );
 		}
 		t.end();