From 28e889994036e2f55cb8eee9a36d4d8cda177cbf Mon Sep 17 00:00:00 2001
From: Steffen Rehberg <steffen.rehberg@googlemail.com>
Date: Mon, 27 Dec 2021 13:29:53 +0100
Subject: [PATCH] MNT: Set CapStyle member names automatically

This was certainly overlooked in #18544, otherwise it would make
no sense to derive CapStyle from _AutoStringNameEnum.
---
 lib/matplotlib/_enums.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/matplotlib/_enums.py b/lib/matplotlib/_enums.py
index 3e4393e7979d..b1361c6f72ba 100644
--- a/lib/matplotlib/_enums.py
+++ b/lib/matplotlib/_enums.py
@@ -148,9 +148,9 @@ class CapStyle(str, _AutoStringNameEnum):
         CapStyle.demo()
 
     """
-    butt = 'butt'
-    projecting = 'projecting'
-    round = 'round'
+    butt = auto()
+    projecting = auto()
+    round = auto()
 
     @staticmethod
     def demo():