chore: minor clean up

Author: Neerajpathak07

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

@@ -253,7 +253,7 @@ 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_betaprime_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/betaprime/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_betaprime_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 );
 	}
 }