chore: minor clean up

Author: Neerajpathak07

lib/node_modules/@stdlib/stats/base/dists/erlang/kurtosis/README.md

@@ -226,7 +226,7 @@ int main( void ) {
         k = stdlib_base_round( random_uniform( 0.0, 10.0 ) );
         lambda = random_uniform( STDLIB_CONSTANT_FLOAT64_EPS, 10.0 );
         y = stdlib_base_dists_erlang_kurtosis( k, lambda );
-        printf( "k: %1f. λ: %1f. Kurt(X;k,λ): %lf\n", k, lambda, y );
+        printf( "k: %lf, λ: %lf, Kurt(X;k,λ): %lf\n", k, lambda, y );
     }
 }
 ```

lib/node_modules/@stdlib/stats/base/dists/erlang/kurtosis/examples/c/example.c

@@ -37,6 +37,6 @@ int main( void ) {
 		k = stdlib_base_round( random_uniform( 0.0, 10.0 ) );
 		lambda = random_uniform( STDLIB_CONSTANT_FLOAT64_EPS, 10.0 );
 		y = stdlib_base_dists_erlang_kurtosis( k, lambda );
-		printf( "k: %1f. λ: %1f. Kurt(X;k,λ): %lf\n", k, lambda, y );
+		printf( "k: %lf, λ: %lf, Kurt(X;k,λ): %lf\n", k, lambda, y );
 	}
 }