[PATCH] runtests: unset editor and pager related environment variables

[Jun Wu]

# HG changeset patch
# User Jun Wu <quark at fb.com>
# Date 1490587134 25200
#      Sun Mar 26 20:58:54 2017 -0700
# Node ID 65f76087bc84162bdf0735f156d403e873e5c4e8
# Parent  e86eb75e74ce1b0803c26d86a229b9b711f6d76a
# Available At https://bitbucket.org/quark-zju/hg-draft
#              hg pull https://bitbucket.org/quark-zju/hg-draft -r 65f76087bc84
runtests: unset editor and pager related environment variables

Those environment variables could affect some configuration and future
tests. Drop them to avoid issues.

diff --git a/tests/run-tests.py b/tests/run-tests.py
--- a/tests/run-tests.py
+++ b/tests/run-tests.py
@@ -907,5 +907,5 @@ class Test(unittest.TestCase):
 
         for k in ('HG HGPROF CDPATH GREP_OPTIONS http_proxy no_proxy ' +
-                  'HGPLAIN HGPLAINEXCEPT ' +
+                  'HGPLAIN HGPLAINEXCEPT EDITOR VISUAL PAGER ' +
                   'NO_PROXY CHGDEBUG').split():
             if k in env: