Coding Standards: Rename the `$oSelf` variable in `WP_MatchesMapRegex::apply()`.

This resolves a WPCS warning:
{{{
Variable "$oSelf" is not in valid snake_case format, try "$o_self"
}}}

Follow-up to [11853], [38376].

See #59650.
Built from https://develop.svn.wordpress.org/trunk@57538


git-svn-id: http://core.svn.wordpress.org/trunk@57039 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-matchesmapregex.php

@@ -63,8 +63,8 @@ class WP_MatchesMapRegex {
 	 * @return string
 	 */
 	public static function apply( $subject, $matches ) {
-		$oSelf = new WP_MatchesMapRegex( $subject, $matches );
-		return $oSelf->output;
+		$result = new WP_MatchesMapRegex( $subject, $matches );
+		return $result->output;
 	}
 
 	/**

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.5-alpha-57537';
+$wp_version = '6.5-alpha-57538';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.