Formatting: In `sanitize_title_with_dashes()`, convert forward slash to hyphen on save.

Props corvidism, jtsternberg, GhostToast, alxndr.
Fixes #10792.
Built from https://develop.svn.wordpress.org/trunk@41318


git-svn-id: http://core.svn.wordpress.org/trunk@41149 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/formatting.php

@@ -2000,6 +2000,8 @@ function sanitize_title_with_dashes( $title, $raw_title = '', $context = 'displa
 		$title = str_replace( array( '%c2%a0', '%e2%80%93', '%e2%80%94' ), '-', $title );
 		// Convert nbsp, ndash and mdash HTML entities to hyphens
 		$title = str_replace( array( ' ', ' ', '–', '–', '—', '—' ), '-', $title );
+		// Convert forward slash to hyphen
+		$title = str_replace( '/', '-', $title );
 
 		// Strip these characters entirely
 		$title = str_replace( array(

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-alpha-41317';
+$wp_version = '4.9-alpha-41318';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.