chore: minor clean up

Author: Neerajpathak07

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

@@ -229,7 +229,7 @@ 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_variance( k, lambda );
-        printf( "k: %1f. λ: %1f. Var(X;k,λ):: %lf\n", k, lambda, y );
+        printf( "k: %lf, λ: %lf, Var(X;k,λ):: %lf\n", k, lambda, y );
     }
 }
 ```

lib/node_modules/@stdlib/stats/base/dists/erlang/variance/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_variance( k, lambda );
-		printf( "k: %1f. λ: %1f. Var(X;k,λ):: %lf\n", k, lambda, y );
+		printf( "k: %lf, λ: %lf, Var(X;k,λ):: %lf\n", k, lambda, y );
 	}
 }

lib/node_modules/@stdlib/stats/base/dists/erlang/variance/src/main.c

@@ -39,5 +39,5 @@ double stdlib_base_dists_erlang_variance( const double k, const double lambda )
 	) {
 		return 0.0 / 0.0;
 	}
-	return k / ( lambda*lambda );
+	return k / ( lambda * lambda );
 }