bpo-30605: Fix compiling binary regexs with BytesWarnings enabled. (#2016)

Running our unit tests with `-bb` enabled triggered this failure.
diff --git a/Misc/ACKS b/Misc/ACKS
index 135491d..74ac15b 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1685,6 +1685,7 @@
 Gerald S. Williams
 Jason Williams
 John Williams
+Roy Williams
 Sue Williams
 Carol Willing
 Steven Willis