fix: correctly format the document class

MiniX16 · MiniX16 · commit 33e34c361914 · 2025-05-22T22:23:59.000+02:00
diff --git a/lib/matplotlib/backends/backend_pgf.py b/lib/matplotlib/backends/backend_pgf.py
@@ -832,7 +832,7 @@ def print_pdf(self, fname_or_fh, *, metadata=None, **kwargs):
             self.print_pgf(tmppath / "figure.pgf", **kwargs)
             (tmppath / "figure.tex").write_text(
                 "\n".join([
-                    r"\documentclass{{{docclass}}}"
+                    rf"\documentclass{{{docclass}}}"
                     r"\usepackage[pdfinfo={%s}]{hyperref}" % pdfinfo,
                     r"\usepackage[papersize={%fin,%fin}, margin=0in]{geometry}"
                     % (w, h),
