[PATCH 2 of 2] run-tests: assign value to ESCAPEMAP - dict.update do not return self

[Mads Kiilerich]

# HG changeset patch
# User Mads Kiilerich <madski at unity3d.com>
# Date 1401018462 -7200
#      Sun May 25 13:47:42 2014 +0200
# Node ID 665481b33700b726fb48fd7bc930239499f2ac65
# Parent  c5e55adeb37b9e1bcaec2e9fc3745f47d568e3d1
run-tests: assign value to ESCAPEMAP - dict.update do not return self

a36cc85a5b7b did more than what the description said and introduced a bug.

diff --git a/tests/run-tests.py b/tests/run-tests.py
--- a/tests/run-tests.py
+++ b/tests/run-tests.py
@@ -675,8 +675,8 @@ class TTest(Test):
     NEEDESCAPE = re.compile(r'[\x00-\x08\x0b-\x1f\x7f-\xff]').search
 
     ESCAPESUB = re.compile(r'[\x00-\x08\x0b-\x1f\\\x7f-\xff]').sub
-    ESCAPEMAP = dict((chr(i), r'\x%02x' % i) for i in range(256)).update(
-                     {'\\': '\\\\', '\r': r'\r'})
+    ESCAPEMAP = dict((chr(i), r'\x%02x' % i) for i in range(256))
+    ESCAPEMAP.update({'\\': '\\\\', '\r': r'\r'})
 
     @property
     def refpath(self):