patch 9.1.0405: tests: xxd buffer overflow fails on 32-bit

Problem:  tests: xxd buffer overflow fails on 32-bit
Solution: Skip test on 32-bit architecture

Signed-off-by: Christian Brabandt <cb@256bit.org>

src/testdir/test_xxd.vim

@@ -412,9 +412,12 @@ func Test_xxd_max_cols()
 endfunc
 
 
-" Try to trigger a buffer overflow (#14738)
+" This used to trigger a buffer overflow (#14738)
 func Test_xxd_buffer_overflow()
   CheckUnix
+  if system('file ' .. s:xxd_cmd) =~ '32-bit'
+    throw 'Skipped: test only works on 64-bit architecture'
+  endif
   new
   let input = repeat('A', 256)
   call writefile(['-9223372036854775808: ' . repeat("\e[1;32m41\e[0m ", 256) . ' ' . repeat("\e[1;32mA\e[0m", 256)], 'Xxdexpected', 'D')

src/version.c

@@ -704,6 +704,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    405,
 /**/
     404,
 /**/