Fix regex so that it works with Python 3.6.

See <https://docs.python.org/3/library/re.html#re.LOCALE>.

Copied from upstream bug report:
https://bugs.launchpad.net/python-mox3/+bug/1665266

From 05064cdb6ea7a16450c6beae2b6f7c6074212a69 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Thu, 16 Feb 2017 00:24:10 -0800
Subject: [PATCH] RegexTest: python3.6 compatibility

These fixes are backward-compatible with older python versions:

* raw strings fix invalid escape sequences
* flags=8 fixes ValueError: cannot use LOCALE flag with a str pattern
---
 mox3/tests/test_mox.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mox3/tests/test_mox.py b/mox3/tests/test_mox.py
index 15ac565..3a1af17 100644
--- a/mox3/tests/test_mox.py
+++ b/mox3/tests/test_mox.py
@@ -312,12 +312,12 @@ class RegexTest(testtools.TestCase):
     def testReprWithoutFlags(self):
         """repr should return the regular expression pattern."""
         self.assertTrue(
-            repr(mox.Regex(r"a\s+b")) == "<regular expression 'a\s+b'>")
+            repr(mox.Regex(r"a\s+b")) == r"<regular expression 'a\s+b'>")
 
     def testReprWithFlags(self):
         """repr should return the regular expression pattern and flags."""
-        self.assertTrue(repr(mox.Regex(r"a\s+b", flags=4)) ==
-                        "<regular expression 'a\s+b', flags=4>")
+        self.assertTrue(repr(mox.Regex(r"a\s+b", flags=8)) ==
+                        r"<regular expression 'a\s+b', flags=8>")
 
 
 class IsTest(testtools.TestCase):
-- 
2.10.2

 class='form'><form class='right' method='get' action='/guix/log/gnu/services/security-token.scm'>
<input type='hidden' name='id' value='70acb47df11f44ed933d0a65189f8acda7c52200'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=70acb47df11f44ed933d0a65189f8acda7c52200'>root</a>/<a href='/guix/log/gnu?id=70acb47df11f44ed933d0a65189f8acda7c52200'>gnu</a>/<a href='/guix/log/gnu/services?id=70acb47df11f44ed933d0a65189f8acda7c52200'>services</a>/<a href='/guix/log/gnu/services/security-token.scm?id=70acb47df11f44ed933d0a65189f8acda7c52200'>security-token.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/services/security-token.scm?id=70acb47df11f44ed933d0a65189f8acda7c52200&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-06-25 01:43:08 +0530'>2022-06-25</span></td><td><a href='/guix/commit/gnu/services/security-token.scm?id=037bfd85458dd0b32a6dd85b7c12e85e3dd716ae'>services: pcscd: Use switch-symlinks from (guix build utils).</a><span class='msg-avail'>...<span class='msg-tooltip'>switch-symlinks has been moved to (guix build utils). We need not duplicate it
anymore.

* gnu/services/security-token.scm (pcscd-activation): Use switch-symlinks
from (guix build utils).
</span></span></td><td>Arun Isaac</td></tr>
<tr><td><span title='2021-07-03 20:13:42 +0200'>2021-07-03</span></td><td><a href='/guix/commit/gnu/services/security-token.scm?id=e789ce538ed848bacb8f4eb5742f78b965ccf57c'>services: pcscd: Fix daemon signal handling.</a><span class='msg-avail'>...<span class='msg-tooltip'>"pcscd" wouldn't handle SIGTERM as it inherit ignoring this signal (and
others) from its parent shepherd; fork+exec-command restore signal
handling.  Fixes &lt;https://issues.guix.gnu.org/45202&gt;.

* gnu/services/security-token.scm (pcscd)[start]: Use
fork+exec-command to start "pcscd".
</span></span></td><td>Brice Waegeneire</td></tr>
<tr><td><span title='2021-06-19 23:49:18 +0200'>2021-06-19</span></td><td><a href='/guix/commit/gnu/services/security-token.scm?id=4bed8486d4c0a4ff142903b8bc1584ce84767355'>services: pcscd: Cleanup socket when started.</a><span class='msg-avail'>...<span class='msg-tooltip'>Otherwise when pcscd doesn't terminate properly (ie. receive a SIGKILL),
it won't start again because of it's socket already existing.

* gnu/services/security-token.scm (pcscd-shepherd-service)[start]:
Remove existing socket file.
</span></span></td><td>Brice Waegeneire</td></tr>
<tr><td><span title='2020-12-13 00:35:49 +0100'>2020-12-13</span></td><td><a href='/guix/commit/gnu/services/security-token.scm?id=a4cd86ff4b7a9dd4bf1a5320b8121b470e381b67'>gnu: htop: Update to 3.0.3.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/admin.scm (htop): Update to 3.0.3.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-12-12 23:10:05 +0100'>2020-12-12</span></td><td><a href='/guix/commit/gnu/services/security-token.scm?id=8f2656f1debffe92ea088f4c88cfe8ec560b2ba3'>services: pcscd-shepherd-service: Fix PID file location.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;http://issues.guix.gnu.org/45202&gt;.

* gnu/services/security-token.scm (pcscd-shepherd-service): Look for
pcscd.pid in /run instead of /var/run.

Reported by Raffael Stocker &lt;r.stocker@mnet-mail.de&gt;.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>