fix: update error messages

---
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: passed
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: na
  - 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: kgryte

lib/node_modules/@stdlib/blas/ext/find-index/lib/assign.js

@@ -99,10 +99,10 @@ function assign( x, out ) {
 
 	nargs = arguments.length;
 	if ( !isndarrayLike( x ) ) {
-		throw new TypeError( format( 'invalid argument. The first argument must be an ndarray. Value: `%s`.', x ) );
+		throw new TypeError( format( 'invalid argument. First argument must be an ndarray. Value: `%s`.', x ) );
 	}
 	if ( !isndarrayLike( out ) ) {
-		throw new TypeError( format( 'invalid argument. The second argument must be an ndarray. Value: `%s`.', out ) );
+		throw new TypeError( format( 'invalid argument. Second argument must be an ndarray. Value: `%s`.', out ) );
 	}
 	// Initialize an options object:
 	opts = {