bpo-44342: [Enum] sync current docs to 3.10 (GH-26750)

Author: ethanfurman

Doc/library/enum.rst

@@ -576,7 +576,7 @@ Data Types
          ...     NEON = 31
          Traceback (most recent call last):
          ...
-         ValueError: invalid Flag 'Color': 'WHITE' is missing a named flag for value 8; 'NEON' is missing named flags for values 8, 16
+         ValueError: invalid Flag 'Color': aliases WHITE and NEON are missing combined values of 0x18 [use enum.show_flag_values(value) for details]
 
 .. note::
 

Lib/enum.py

@@ -1637,7 +1637,7 @@ def __call__(self, enumeration):
                     else:
                         value = 'combined values of 0x%x' % missing_value
                     raise ValueError(
-                            'invalid Flag %r: %s %s [use `enum.show_flag_values(value)` for details]'
+                            'invalid Flag %r: %s %s [use enum.show_flag_values(value) for details]'
                             % (cls_name, alias, value)
                             )
         return enumeration

Lib/test/test_enum.py

@@ -3614,7 +3614,7 @@ class Bizarre(Flag):
         self.assertEqual(Bizarre.d.value, 6)
         with self.assertRaisesRegex(
                 ValueError,
-                "invalid Flag 'Bizarre': aliases b and d are missing combined values of 0x3 .use `enum.show_flag_values.value.` for details.",
+                "invalid Flag 'Bizarre': aliases b and d are missing combined values of 0x3 .use enum.show_flag_values.value. for details.",
             ):
             @verify(NAMED_FLAGS)
             class Bizarre(Flag):
@@ -3633,7 +3633,7 @@ class Bizarre(IntFlag):
         self.assertEqual(Bizarre.d.value, 6)
         with self.assertRaisesRegex(
                 ValueError,
-                "invalid Flag 'Bizarre': alias d is missing value 0x2 .use `enum.show_flag_values.value.` for details.",
+                "invalid Flag 'Bizarre': alias d is missing value 0x2 .use enum.show_flag_values.value. for details.",
             ):
             @verify(NAMED_FLAGS)
             class Bizarre(IntFlag):