https://github.com/FFY00/python-pep621/commit/1691b64e51d47afb084742958d69755e21b0767e

From: =?UTF-8?q?Filipe=20La=C3=ADns?= <lains@riseup.net>
Date: Wed, 26 Jan 2022 15:49:32 +0000
Subject: [PATCH] tests: fix tests for new pypa/packaging version
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Signed-off-by: Filipe Laíns <lains@riseup.net>
--- a/tests/test_standard_metadata.py
+++ b/tests/test_standard_metadata.py
@@ -231,7 +231,7 @@
             (
                 'Field `project.dependencies` contains an invalid PEP 508 requirement '
                 'string `definitely not a valid PEP 508 requirement!` '
-                '(`Parse error at "\'not a va\'": Expected stringEnd`)'
+                '(`Parse error at "\'not a va\'": Expected string_end`)'
             ),
         ),
         # optional-dependencies
@@ -284,7 +284,7 @@
             (
                 'Field `project.optional-dependencies.test` contains an invalid '
                 'PEP 508 requirement string `definitely not a valid PEP 508 requirement!` '
-                '(`Parse error at "\'not a va\'": Expected stringEnd`)'
+                '(`Parse error at "\'not a va\'": Expected string_end`)'
             ),
         ),
         # requires-python

