Issue #20731: Properly position in source code files even if they
are opened in text mode. Patch by Serhiy Storchaka.
diff --git a/.hgeol b/.hgeol
index 4e03690..73a4770 100644
--- a/.hgeol
+++ b/.hgeol
@@ -37,6 +37,8 @@
 
 Lib/venv/scripts/nt/* = BIN
 
+Lib/test/coding20731.py = BIN
+
 # All other files (which presumably are human-editable) are "native".
 # This must be the last rule!