Bug 1706197 - Avoid Python version dependent line number issues r=firefox-build-system-reviewers,glandium

Differential Revision: https://phabricator.services.mozilla.com/D112760

python/mozbuild/mozbuild/test/configure/test_lint.py

@@ -407,11 +407,11 @@ class TestLint(unittest.TestCase):
         """
         ):
             self.lint_test()
-        with self.assertRaisesFromLine(ConfigureError, 4) as e:
+        with self.assertRaisesFromLine(ConfigureError, 3) as e:
             with self.moz_configure(
                 """
                 option(env='FOO', help='foo')
-                option('--enable-bar', default=depends('FOO')(lambda x: bool(x)),
+                option('--enable-bar', default=depends('FOO')(lambda x: bool(x)),\
                        help='Enable bar')
             """
             ):
@@ -423,14 +423,14 @@ class TestLint(unittest.TestCase):
         )
 
     def test_large_offset(self):
-        with self.assertRaisesFromLine(ConfigureError, 376):
+        with self.assertRaisesFromLine(ConfigureError, 375):
             with self.moz_configure(
                 """
                 option(env='FOO', help='foo')
             """
                 + "\n" * 371
                 + """
-                option('--enable-bar', default=depends('FOO')(lambda x: bool(x)),
+                option('--enable-bar', default=depends('FOO')(lambda x: bool(x)),\
                        help='Enable bar')
             """
             ):