patch 8.1.0476: memory leaks in test_escaped_glob

Problem:    Memory leaks in test_escaped_glob.
Solution:   Avoid failure when running the shell, use the sandbox.

src/version.c

@@ -792,6 +792,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    476,
 /**/
     475,
 /**/