tests: fix readline escape characters in output for test-doctest.py

tests/test-doctest.py

@@ -1,12 +1,14 b''
+# this is hack to make sure no escape characters are inserted into the output
+import os; del os.environ['TERM'] 
 import doctest
 
 import mercurial.changelog
 # test doctest from changelog
 
 doctest.testmod(mercurial.changelog)
 
 import mercurial.httprepo
 doctest.testmod(mercurial.httprepo)
 
 import mercurial.util
 doctest.testmod(mercurial.util)