Fixed #36519 -- Made center template filter consistent for even/odd padding.

Refactored `center` template filter to match f-string behaviour,
producing consistent padding for both odd and even fillings.

Thanks Lily Acorn for the report and Natalia Bidart for the review.

Co-authored-by: Lily Acorn <code@lilyf.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/django/template/defaultfilters.py b/django/template/defaultfilters.py
index b50b790fc1..3ed9856c08 100644
--- a/django/template/defaultfilters.py
+++ b/django/template/defaultfilters.py
@@ -432,7 +432,10 @@ def rjust(value, arg):
 @stringfilter
 def center(value, arg):
     """Center the value in a field of a given width."""
-    return value.center(int(arg))
+    width = int(arg)
+    if width <= 0:
+        return value
+    return f"{value:^{width}}"
 
 
 @register.filter