Provides a simpler way of inserting a user into the database.

Creates a new user with just the username, password, and email. For more
complex user creation use wp_insert_user() to specify more information.

function wp_create_user( $username, $password, $email = '' ) {
	$user_login = wp_slash( $username );
	$user_email = wp_slash( $email );
	$user_pass  = $password;

	$userdata = compact( 'user_login', 'user_email', 'user_pass' );
	return wp_insert_user( $userdata );
}