Add a Recovery Mode Exit button to the notice. This fixes it in responsive view.

Props desrosj, karmatosed, chetan200891, afercia, afragen, garrett-eclipse.
Fixes #47070.
Built from https://develop.svn.wordpress.org/trunk@45529


git-svn-id: http://core.svn.wordpress.org/trunk@45340 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/update.php

@@ -841,10 +841,20 @@ function wp_recovery_mode_nag() {
 		return;
 	}
 
+	$url = wp_login_url();
+	$url = add_query_arg( 'action', WP_Recovery_Mode::EXIT_ACTION, $url );
+	$url = wp_nonce_url( $url, WP_Recovery_Mode::EXIT_ACTION );
+
 	?>
 	<div class="notice notice-info">
 		<p>
-			<?php esc_html_e( 'You are in recovery mode. This means there may be an error with a theme or plugin. To exit recovery mode, log out or use the Exit button.' ); ?>
+			<?php
+			printf(
+				/* translators: %s: Recovery Mode exit link */
+				__( 'You are in recovery mode. This means there may be an error with a theme or plugin. To exit recovery mode, log out or use the Exit button. <a href="%s">Exit Recovery Mode</a>' ),
+				esc_url( $url )
+			);
+			?>
 		</p>
 	</div>
 	<?php

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.3-alpha-45527';
+$wp_version = '5.3-alpha-45529';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.