gh-38464: remove stray r

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URL: #38464
Reported by: Martin Rubey
Reviewer(s): Frédéric Chapoton

build/pkgs/configure/checksums.ini

@@ -1,3 +1,3 @@
 tarball=configure-VERSION.tar.gz
-sha1=d21dcef9ea75fb52a89af8592796f8a2d97d3f2f
-sha256=ce97f7eecff470cc7dc4c6dce7f0e5e7e85382c2411b23bc6eb9c6934b002ada
+sha1=fe5d8514b2705668c7d170aff73d317ce8e59fcb
+sha256=6c85b694c7440618f9074e10e94880289e175e1b005ce24ebfb247a05a33bb25

build/pkgs/configure/package-version.txt

@@ -1 +1 @@
-f473d0954b37ab99d3530145c0f4536e4f0d88c9
+d0484a47bb178d1a47bd5e038a579334d5b85ddc

src/sage/categories/examples/algebras_with_basis.py

@@ -52,7 +52,7 @@ def one_basis(self):
         Return the empty word, which index the one of this algebra,
         as per :meth:`AlgebrasWithBasis.ParentMethods.one_basis`.
 
-        EXAMPLES::r
+        EXAMPLES::
 
             sage: A = AlgebrasWithBasis(QQ).example()                                   # needs sage.modules
             sage: A.one_basis()                                                         # needs sage.modules