test: fix description

---
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
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    status: na
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    status: na
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    status: na
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  - task: lint_c_src
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    status: na
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  - task: lint_typescript_declarations
    status: passed
  - task: lint_typescript_tests
    status: passed
  - task: lint_license_headers
    status: passed
---

Author: Planeshifter

lib/node_modules/@stdlib/blas/ext/base/ndarray/gjoin/docs/types/test.ts

@@ -25,7 +25,7 @@ import gjoin = require( './index' );
 
 // TESTS //
 
-// The function returns a number...
+// The function returns a string...
 {
 	const x = zeros( [ 10 ], {
 		'dtype': 'generic'