tests: use raw string in test-check-code.t
To avoid a SyntaxWarning on Python 3.8 due to invalid \ escape.
Differential Revision: https://phab.mercurial-scm.org/D5837
--- a/tests/test-check-code.t Mon Feb 04 09:47:13 2019 -0800
+++ b/tests/test-check-code.t Mon Feb 04 14:00:57 2019 -0800
@@ -22,7 +22,7 @@
>>> commands = []
>>> with open('mercurial/debugcommands.py', 'rb') as fh:
... for line in fh:
- ... m = re.match(b"^@command\('([a-z]+)", line)
+ ... m = re.match(br"^@command\('([a-z]+)", line)
... if m:
... commands.append(m.group(1))
>>> scommands = list(sorted(commands))