FIX: Name

sphinx/builders/html/__init__.py

@@ -401,18 +401,18 @@ def math_renderer_name(self) -> str | None:
                 return None
 
     def get_outdated_docs(self) -> Iterator[str]:
-        old_info = path.join(self.outdir, '.buildinfo')
+        build_info_fname = path.join(self.outdir, '.buildinfo')
         try:
-            with open(old_info, encoding="utf-8") as fp:
+            with open(build_info_fname, encoding="utf-8") as fp:
                 buildinfo = BuildInfo.load(fp)
 
             if self.build_info != buildinfo:
                 logger.info(
                     bold(__("building [html]: ")) +
                     __("build_info mismatch, copying .buildinfo to .buildinfo.old")
                 )
-                shutil.copy(old_info, old_info + ".old")
-                with open(path.join(self.outdir, '.buildinfo'), 'w', encoding="utf-8") as fp:
+                shutil.copy(build_info_fname, build_info_fname + ".old")
+                with open(build_info_fname, 'w', encoding="utf-8") as fp:
                     self.build_info.dump(fp)
                 yield from self.env.found_docs
                 return