fix: apply suggestions from code review

---
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: missing_dependencies
  - 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: passed
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---

Author: headlessNode

lib/node_modules/@stdlib/blas/ext/base/ddiff/lib/ndarray.js

@@ -77,7 +77,7 @@ function ddiff( N, k, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, ap
 		return out;
 	}
 
-	// If k >= total number of elements, the k-th forward difference results in an empty array, so this function is a no-op.
+	// If k >= total number of elements, the k-th forward difference results in an empty array, so this function is a no-op...
 	if ( k >= total ) {
 		return out;
 	}

lib/node_modules/@stdlib/blas/ext/base/ddiff/src/main.c

@@ -202,6 +202,8 @@ void API_SUFFIX(stdlib_strided_ddiff_ndarray)( const CBLAS_INT N, const CBLAS_IN
 	CBLAS_INT i;
 
 	total = N + N1 + N2;
+
+	// If k >= total number of elements, the k-th forward difference results in an empty array, so this function is a no-op...
 	if ( total <= 1 || k >= total ) {
 		return;
 	}