[PATCH STABLE] tests: add a missing abort exit code on Windows in test-audit-subrepo.t

[Matt Harbison]

# HG changeset patch
# User Matt Harbison <matt_harbison at yahoo.com>
# Date 1550714278 18000
#      Wed Feb 20 20:57:58 2019 -0500
# Branch stable
# Node ID a62690659d6bbe5abd4bb1a45248b0c760cb9188
# Parent  ffbf742bfe1fea23931c13fd53ab5d03838d97eb
tests: add a missing abort exit code on Windows in test-audit-subrepo.t

diff --git a/tests/test-audit-subrepo.t b/tests/test-audit-subrepo.t
--- a/tests/test-audit-subrepo.t
+++ b/tests/test-audit-subrepo.t
@@ -693,6 +693,7 @@ on clone (and update):
 
   $ hg clone -q driveletter driveletter2
   abort: path contains illegal component: X:
+  [255]
 
 #else