style: format benchmark files for consistency

---
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: na
  - task: lint_javascript_benchmarks
    status: passed
  - 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: gururaj1512

lib/node_modules/@stdlib/stats/base/stdevpn/benchmark/benchmark.js

@@ -27,12 +27,14 @@ var pow = require( '@stdlib/math/base/special/pow' );
 var pkg = require( './../package.json' ).name;
 var stdevpn = require( './../lib/stdevpn.js' );
 
+
 // VARIABLES //
 
 var options = {
 	'dtype': 'generic'
 };
 
+
 // FUNCTIONS //
 
 /**

lib/node_modules/@stdlib/stats/base/stdevpn/benchmark/benchmark.ndarray.js

@@ -27,12 +27,14 @@ var pow = require( '@stdlib/math/base/special/pow' );
 var pkg = require( './../package.json' ).name;
 var stdevpn = require( './../lib/ndarray.js' );
 
+
 // VARIABLES //
 
 var options = {
 	'dtype': 'generic'
 };
 
+
 // FUNCTIONS //
 
 /**