Rewrite Rules: Use double quotes instead of backticks in `.htaccess` instructions about `# BEGIN/END` markers.

Previously, the backticks resulted in extra markup being added when posted on support forums.

Props mayankmajeji, knutsp.
Fixes #49868.
Built from https://develop.svn.wordpress.org/trunk@47571


git-svn-id: http://core.svn.wordpress.org/trunk@47346 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/misc.php

@@ -134,7 +134,7 @@ function insert_with_markers( $filename, $marker, $insertion ) {
 	$instructions = sprintf(
 		/* translators: 1: Marker. */
 		__(
-			'The directives (lines) between `BEGIN %1$s` and `END %1$s` are
+			'The directives (lines) between "BEGIN %1$s" and "END %1$s" are
 dynamically generated, and should only be modified via WordPress filters.
 Any changes to the directives between these markers will be overwritten.'
 		),

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.5-alpha-47570';
+$wp_version = '5.5-alpha-47571';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.