[PATCH 3 of 3] tests: choose the proper environment variable style for the platform

[Matt Harbison]

# HG changeset patch
# User Matt Harbison <matt_harbison at yahoo.com>
# Date 1416540820 18000
#      Thu Nov 20 22:33:40 2014 -0500
# Node ID ed6f861d80668bfb502925a0ca1ca44e371393ec
# Parent  9973255d082986ceb894983077e39edd1bd0b9b8
tests: choose the proper environment variable style for the platform

Windows was printing out 'commit $HG_NODE' instead of the actual hash.

diff --git a/tests/test-histedit-fold.t b/tests/test-histedit-fold.t
--- a/tests/test-histedit-fold.t
+++ b/tests/test-histedit-fold.t
@@ -470,7 +470,14 @@
   1:199b6bb90248 b
   0:6c795aa153cb a
 
-  $ hg histedit 6c795aa153cb --config hooks.commit="echo commit \$HG_NODE" --commands - 2>&1 << EOF | fixbundle
+Setup the proper environment variable symbol for the platform, to be subbed
+into the hook command.
+#if windows
+  $ NODE="%HG_NODE%"
+#else
+  $ NODE="\$HG_NODE"
+#endif
+  $ hg histedit 6c795aa153cb --config hooks.commit="echo commit $NODE" --commands - 2>&1 << EOF | fixbundle
   > pick 199b6bb90248 b
   > fold a1a953ffb4b0 c
   > pick 6c795aa153cb a