Issue #17591: Use lowercase filenames when including Windows header files.
Patch by Roumen Petrov.
diff --git a/Misc/ACKS b/Misc/ACKS
index 21f2cd5..7c7ad78 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -943,6 +943,7 @@
 Benjamin Peterson
 Joe Peterson
 Chris Petrilli
+Roumen Petrov
 Bjorn Pettersen
 Justin D. Pettit
 Ronny Pfannschmidt