[PATCH] run-tests: allow hg executable to be hg.exe

[Kostia Balytskyi]

# HG changeset patch
# User Kostia Balytskyi <ikostia at fb.com>
# Date 1495050700 25200
#      Wed May 17 12:51:40 2017 -0700
# Node ID fc5ad0312330350a1f03ab036530935764592334
# Parent  2d19664e257da7ad5cb97150d81838c25872fac7
run-tests: allow hg executable to be hg.exe

When running tests on Windows (via msys), user sometimes does not want to run
them against source hg, but against compiled hg.exe. For that purpose,
--with-hg option can be used, but currently run-tests.py prints a warning if
the value of this argument is not a file with basename 'hg'. This patch allows
such file to be 'hg.exe'.

diff --git a/tests/run-tests.py b/tests/run-tests.py
--- a/tests/run-tests.py
+++ b/tests/run-tests.py
@@ -341,7 +341,7 @@ def parseargs(args, parser):
         if not (os.path.isfile(options.with_hg) and
                 os.access(options.with_hg, os.X_OK)):
             parser.error('--with-hg must specify an executable hg script')
-        if not os.path.basename(options.with_hg) == b'hg':
+        if os.path.basename(options.with_hg) not in [b'hg', b'hg.exe']:
             sys.stderr.write('warning: --with-hg should specify an hg script\n')
     if options.local:
         testdir = os.path.dirname(_bytespath(canonpath(sys.argv[0])))