Allow event slug to be specified

I wrote a standalone script to import events from another site.
The events are for musicians in a bar. Many of the musicians play regularly.

I use EM_Event::save() after creating a new EM_Event() object and populating some of the values.

	$EM_Event = new EM_Event();
	$EM_Event->event_name = $event_title;
	// Append date to event so that the url of repeated events look better.
	$event_slug = sanitize_title($event_title.' '.$event_start_date);
	$EM_Event->event_slug = $event_slug;
	$EM_Event->post_name = $EM_Event->event_slug;
	$EM_Event->post_content = $event_description;
	$EM_Event->event_owner = $author_id;
	$EM_Event->location_id = $location_id;
	
	$EM_Event->event_start_date = $event_start_date;
	$EM_Event->event_end_date = $event_end_date;
	$EM_Event->event_start_time = $event_start_time;
	$EM_Event->event_end_time = $event_end_time;
	$EM_Event->start = strtotime($EM_Event->event_start_date.' '.$EM_Event->event_start_time);
	$EM_Event->end = strtotime($EM_Event->event_end_date.' '.$EM_Event->event_end_time);

Unfortunately, $EM_Event->event_name is sent to wp_insert_post() [as ‘post_title’] but $EM_Event->post_name isn’t.
This results in event slugs like Band-name, Band-name-2, Band-name-3 etc.
I would like to have Band-name-2017-10-01 (name – date).

Would it be possible to send post_name to wp_insert_post()?

Suggested patch:

--- em-event.orig.php   2017-09-27 10:01:24.296281200 +0100
+++ em-event.php        2017-09-27 12:19:27.388067700 +0100
@@ -757,6 +757,9 @@
                $post_array['post_title'] = $this->event_name;
                $post_array['post_content'] = $this->post_content;
                $post_array['post_excerpt'] = $this->post_excerpt;
+               if ( isset($this->event_slug) ) {
+                       $post_array['post_name'] = $this->event_slug;
+               }
                //decide on post status
                if( empty($this->force_status) ){
                        if( count($this->errors) == 0 ){