step-82: rename output filename

like in #14816

diff --git a/examples/step-82/step-82.cc b/examples/step-82/step-82.cc
index 961f3f841818f04cadbb75ee5ccca50d5176f913..e39970eb7408e1fd6e2b1c7d38c3940ddbae604e 100644 (file)
--- a/examples/step-82/step-82.cc
+++ b/examples/step-82/step-82.cc
@@ -435,7 +435,7 @@ namespace Step82
     // At the end of the function, we output this sparsity pattern as
     // a scalable vector graphic. You can visualize it by loading this
     // file in most web browsers:
-    std::ofstream out("sparsity_pattern.svg");
+    std::ofstream out("sparsity-pattern.svg");
     sparsity_pattern.print_svg(out);
   }