Media: Improved media titles when created from filename.

Preserves spaces and generally creates more accurate, cleaner titles from filenames of uploaded media.

Merge of [38614] to the 4.6 branch.

Props joemcgill.
Fixes #37989.


Built from https://develop.svn.wordpress.org/branches/4.6@38615


git-svn-id: http://core.svn.wordpress.org/branches/4.6@38558 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/media.php

@@ -290,7 +290,7 @@ function media_handle_upload($file_id, $post_id, $post_data = array(), $override
 	$url = $file['url'];
 	$type = $file['type'];
 	$file = $file['file'];
-	$title = sanitize_title( $name );
+	$title = sanitize_text_field( $name );
 	$content = '';
 	$excerpt = '';
 

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.6.2-alpha-38581';
+$wp_version = '4.6.2-alpha-38615';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.