# HG changeset patch
# User Matt Harbison <matt_harbison@yahoo.com>
# Date 1669136126 18000
# Node ID c4874ebe8644b03a19c35136c3fa06256feada41
# Parent  f09bc2ed9100e1e24a52feaec3f5dbf5179cd11e
match: make the FLAG_RE pattern a raw string

PyCharm was complaining about invalid escape sequences since this was added
recently in 3eda36e9b3d6.

diff -r f09bc2ed9100 -r c4874ebe8644 mercurial/match.py
--- a/mercurial/match.py	Sun Nov 20 15:55:27 2022 -0500
+++ b/mercurial/match.py	Tue Nov 22 11:55:26 2022 -0500
@@ -1323,7 +1323,7 @@
     return res
 
 
-FLAG_RE = util.re.compile(b'^\(\?([aiLmsux]+)\)(.*)')
+FLAG_RE = util.re.compile(br'^\(\?([aiLmsux]+)\)(.*)')
 
 
 def _regex(kind, pat, globsuffix):