Issue #17202: Add .bat to .hgeol to force them to CRLF.
Using LF can a script to fail if it tries to use a label that is
split across 512 byte blocks. Who knows why.
diff --git a/Lib/idlelib/idle.bat b/Lib/idlelib/idle.bat
index e77b96e..3d619a3 100755
--- a/Lib/idlelib/idle.bat
+++ b/Lib/idlelib/idle.bat
@@ -1,4 +1,4 @@
-@echo off
-rem Start IDLE using the appropriate Python interpreter
-set CURRDIR=%~dp0
-start "IDLE" "%CURRDIR%..\..\pythonw.exe" "%CURRDIR%idle.pyw" %1 %2 %3 %4 %5 %6 %7 %8 %9
+@echo off
+rem Start IDLE using the appropriate Python interpreter
+set CURRDIR=%~dp0
+start "IDLE" "%CURRDIR%..\..\pythonw.exe" "%CURRDIR%idle.pyw" %1 %2 %3 %4 %5 %6 %7 %8 %9