feat: add C implementation for stats/base/dists/frechet/logpdf: fix PR comments part 2

---
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: passed
  - 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: passed
  - 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: iraandrushko

lib/node_modules/@stdlib/stats/base/dists/frechet/logpdf/README.md

@@ -260,7 +260,7 @@ int main( void ) {
         s = random_uniform( 0.0, 10.0 );
         m = random_uniform( 0.0, 10.0 );
         y = stdlib_base_dists_frechet_logpdf( x, alpha, s, m );
-        printf( "x: %.4lf, α: %.4lf, s: %.4lf, m: %.4lf, ln(f(x;α,s,m)): %.4lf\n", x, alpha, s, m, y );
+        printf( "x: %lf, α: %lf, s: %lf, m: %lf, ln(f(x;α,s,m)): %lf\n", x, alpha, s, m, y );
     }
 }
 

lib/node_modules/@stdlib/stats/base/dists/frechet/logpdf/examples/c/example.c

@@ -39,6 +39,6 @@ int main( void ) {
 		s = random_uniform( 0.0, 10.0 );
 		m = random_uniform( 0.0, 10.0 );
 		y = stdlib_base_dists_frechet_logpdf( x, alpha, s, m );
-		printf( "x: %.4lf, α: %.4lf, s: %.4lf, m: %.4lf, ln(f(x;α,s,m)): %.4lf\n", x, alpha, s, m, y );
+		printf( "x: %lf, α: %lf, s: %lf, m: %lf, ln(f(x;α,s,m)): %lf\n", x, alpha, s, m, y );
 	}
 }

lib/node_modules/@stdlib/stats/base/dists/frechet/logpdf/lib/native.js

@@ -28,6 +28,7 @@ var addon = require( './../src/addon.node' );
 /**
 * Evaluates the logarithm of the probability density function (PDF) for a Fréchet distribution with shape `alpha`, scale `s`, and location `m` at a value `x`.
 *
+* @private
 * @param {number} x - input value
 * @param {PositiveNumber} alpha - shape parameter
 * @param {PositiveNumber} s - scale parameter