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.
diff --git a/src/testdir/test_escaped_glob.vim b/src/testdir/test_escaped_glob.vim
index e0723da..880f32e 100644
--- a/src/testdir/test_escaped_glob.vim
+++ b/src/testdir/test_escaped_glob.vim
@@ -2,8 +2,6 @@
 " characters.
 
 function SetUp()
-  " make sure glob() doesn't use the shell
-  set shell=doesnotexist
   " consistent sorting of file names
   set nofileignorecase
 endfunction
@@ -14,19 +12,22 @@
     " filenames. Disable the test on non-Unix systems for now.
     return
   endif
-  call assert_equal("", glob('Xxx\{'))
-  call assert_equal("", glob('Xxx\$'))
+
+  " Execute these commands in the sandbox, so that using the shell fails.
+  " Setting 'shell' to an invalid name causes a memory leak.
+  sandbox call assert_equal("", glob('Xxx\{'))
+  sandbox call assert_equal("", glob('Xxx\$'))
   w! Xxx{
   w! Xxx\$
-  call assert_equal("Xxx{", glob('Xxx\{'))
-  call assert_equal("Xxx$", glob('Xxx\$'))
+  sandbox call assert_equal("Xxx{", glob('Xxx\{'))
+  sandbox call assert_equal("Xxx$", glob('Xxx\$'))
   call delete('Xxx{')
   call delete('Xxx$')
 endfunction
 
 function Test_globpath()
-  call assert_equal("sautest/autoload/globone.vim\nsautest/autoload/globtwo.vim",
+  sandbox call assert_equal("sautest/autoload/globone.vim\nsautest/autoload/globtwo.vim",
         \ globpath('sautest/autoload', 'glob*.vim'))
-  call assert_equal(['sautest/autoload/globone.vim', 'sautest/autoload/globtwo.vim'],
+  sandbox call assert_equal(['sautest/autoload/globone.vim', 'sautest/autoload/globtwo.vim'],
         \ globpath('sautest/autoload', 'glob*.vim', 0, 1))
 endfunction
diff --git a/src/version.c b/src/version.c
index 4523c71..56addcd 100644
--- a/src/version.c
+++ b/src/version.c
@@ -793,6 +793,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    476,
+/**/
     475,
 /**/
     474,