Docs: Update `since` tag for `X-Redirect-By` header additions.

See [42408-42409], [42633], [42647].

Fixes #42313.
Built from https://develop.svn.wordpress.org/trunk@44386


git-svn-id: http://core.svn.wordpress.org/trunk@44216 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/pluggable.php

@@ -1193,7 +1193,7 @@ if ( ! function_exists( 'wp_redirect' ) ) :
 	 *     }
 	 *
 	 * @since 1.5.1
-	 * @since 5.0.0 The `$x_redirect_by` parameter was added.
+	 * @since 5.1.0 The `$x_redirect_by` parameter was added.
 	 *
 	 * @global bool $is_IIS
 	 *
@@ -1240,7 +1240,7 @@ if ( ! function_exists( 'wp_redirect' ) ) :
 		 *
 		 * Allows applications to identify themselves when they're doing a redirect.
 		 *
-		 * @since 5.0.0
+		 * @since 5.1.0
 		 *
 		 * @param string $x_redirect_by The application doing the redirect.
 		 * @param int    $status        Status code to use.
@@ -1331,7 +1331,7 @@ if ( ! function_exists( 'wp_safe_redirect' ) ) :
 	 *     }
 	 *
 	 * @since 2.3.0
-	 * @since 5.0.0 The return value from wp_redirect() is now passed on, and the `$x_redirect_by` parameter was added.
+	 * @since 5.1.0 The return value from wp_redirect() is now passed on, and the `$x_redirect_by` parameter was added.
 	 *
 	 * @param string $location      The path or URL to redirect to.
 	 * @param int    $status        Optional. HTTP response status code to use. Default '302' (Moved Temporarily).

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.1-alpha-44385';
+$wp_version = '5.1-alpha-44386';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.