Replace deprecated assertRegexpMatches alias with assertRegex

Harmon758 · Harmon758 · commit 8cb3e0cac2f1 · 2020-02-16T14:03:20.000-06:00
In TExc.test_CommandError_unicode
diff --git a/git/test/test_exc.py b/git/test/test_exc.py
@@ -92,7 +92,7 @@ def test_CommandError_unicode(self, case):
             if subs is not None:
                 # Substrings (must) already contain opening `'`.
                 subs = "(?<!')%s(?!')" % re.escape(subs)
-                self.assertRegexpMatches(s, subs)
+                self.assertRegex(s, subs)
 
         if not stream:
             c = cls(argv, cause)
