Docs: Correct description for `shortcode_atts_{$shortcode}` filter.

Props glebkema.
Fixes #49225.
Built from https://develop.svn.wordpress.org/trunk@47087


git-svn-id: http://core.svn.wordpress.org/trunk@46887 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/shortcodes.php

@@ -580,7 +580,7 @@ function shortcode_atts( $pairs, $atts, $shortcode = '' ) {
 
 	if ( $shortcode ) {
 		/**
-		 * Filters a shortcode's default attributes.
+		 * Filters shortcode attributes.
 		 *
 		 * If the third parameter of the shortcode_atts() function is present then this filter is available.
 		 * The third parameter, $shortcode, is the name of the shortcode.

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.4-alpha-47086';
+$wp_version = '5.4-alpha-47087';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.