[PATCH 1 of 4] test-audit-path: fill in missing output for no-symlink case

[Matt Harbison]

# HG changeset patch
# User Matt Harbison <matt_harbison at yahoo.com>
# Date 1507954046 14400
#      Sat Oct 14 00:07:26 2017 -0400
# Node ID e1a7c125f4ac198ba0ec72d9c378a8a357862799
# Parent  16d73491416b8db667296526740fed2af086452b
test-audit-path: fill in missing output for no-symlink case

It looks like this was meant to go with 989e884d1be9.

diff --git a/tests/test-audit-path.t b/tests/test-audit-path.t
--- a/tests/test-audit-path.t
+++ b/tests/test-audit-path.t
@@ -110,6 +110,7 @@
 #else
 ('back' will be a file and cause some other system specific error)
   $ hg update -Cr2
+  back: is both a file and a directory
   abort: * (glob)
   [255]
 #endif