Issue #9583: Document startup option/environment interaction.

Patch by Todd Rovito.
diff --git a/Misc/ACKS b/Misc/ACKS
index 7429f77..ba87ecb 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -901,6 +901,7 @@
 Saskia van Rossum
 Donald Wallace Rouse II
 Liam Routt
+Todd Rovito
 Craig Rowland
 Clinton Roy
 Paul Rubin