Fix typo in comment

Change-Id: Ib084dd47a7ad37a64d8abe9cc577f6b05b91a913
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63340
Auto-Submit: Alastair Donaldson <afdx@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
diff --git a/samples/main.cc b/samples/main.cc
index ad6104a..5976609 100644
--- a/samples/main.cc
+++ b/samples/main.cc
@@ -841,7 +841,7 @@
 
   return true;
 #else
-  std::cerr << "MSL writer not enabled in tint build" << std::endl;
+  std::cerr << "HLSL writer not enabled in tint build" << std::endl;
   return false;
 #endif  // TINT_BUILD_HLSL_WRITER
 }