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

Author: headlessNode

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

@@ -57,7 +57,7 @@ function base( N, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append
 	if ( total <= 1 ) {
 		return out;
 	}
-	// Calculate the forward difference over the input array...
+	// Compute forward differences:
 	if ( N1 === 0 && N2 === 0 ) {
 		ix = offsetX;
 		io = offsetOut;
@@ -71,7 +71,7 @@ function base( N, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append
 		}
 		return out;
 	}
-	// Calculate the forward difference over the list of prepended values...
+	// Compute forward differences over the list of prepended values:
 	if ( N1 > 0 ) {
 		io = offsetOut;
 		ip = offsetP;
@@ -101,7 +101,7 @@ function base( N, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append
 		prev = append[ offsetA ];
 		io = offsetOut;
 	}
-	// Calculate the forward difference over the input array...
+	// Compute forward differences over the input array:
 	if ( N > 0 ) {
 		ix = offsetX;
 		if ( N1 === 0 ) {
@@ -131,7 +131,7 @@ function base( N, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append
 			io += strideOut;
 		}
 	}
-	// Calculate the forward difference over the list of appended values...
+	// Compute forward differences over the list of appended values:
 	if ( N2 > 0 ) {
 		ia = offsetA + strideA;
 		for ( i = 1; i < N2; i++ ) {