chore: refactor according to commit comments

PR-URL: #5098
Closes: #5091

Co-authored-by: Philipp Burckhardt <pburckhardt@outlook.com>
Reviewed-by: Philipp Burckhardt <pburckhardt@outlook.com>
Signed-off-by: Philipp Burckhardt <pburckhardt@outlook.com>

Author: saurabhraghuvanshii

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

@@ -256,7 +256,7 @@ int main( void ) {
         alpha = random_uniform( STDLIB_CONSTANT_FLOAT64_EPS, 5.0 );
         beta = random_uniform( STDLIB_CONSTANT_FLOAT64_EPS, 5.0 );
         y = stdlib_base_dists_beta_logpdf( x, alpha, beta );
-        printf( "x: %1f. α: %1f. β: %1f. ln(f(x;α,β)): %lf\n", x, alpha, beta, y );
+        printf( "x: %lf, α: %lf, β: %lf, ln(f(x;α,β)): %lf\n", x, alpha, beta, y );
     }
 }
 ```

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

@@ -38,6 +38,6 @@ int main( void ) {
 		alpha = random_uniform( STDLIB_CONSTANT_FLOAT64_EPS, 5.0 );
 		beta = random_uniform( STDLIB_CONSTANT_FLOAT64_EPS, 5.0 );
 		y = stdlib_base_dists_beta_logpdf( x, alpha, beta );
-		printf( "x: %1f. α: %1f. β: %1f. ln(f(x;α,β)): %lf\n", x, alpha, beta, y );
+		printf( "x: %lf, α: %lf, β: %lf, ln(f(x;α,β)): %lf\n", x, alpha, beta, y );
 	}
 }

lib/node_modules/@stdlib/stats/base/dists/beta/logpdf/src/main.c

@@ -36,7 +36,7 @@
 * double y = stdlib_base_dists_beta_logpdf( 0.5, 1.0, 1.0 );
 * // returns 0.0
 */
-double stdlib_base_dists_beta_logpdf( const double x, double alpha, const double beta ) {
+double stdlib_base_dists_beta_logpdf( const double x, const double alpha, const double beta ) {
 	double out;
 	if (
 		stdlib_base_is_nan( x ) ||