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/PCbuild/idle.bat b/PCbuild/idle.bat
index dcb0485..5ab15f5 100644
--- a/PCbuild/idle.bat
+++ b/PCbuild/idle.bat
@@ -1,15 +1,15 @@
-@echo off
-rem start idle
-rem Usage:  idle [-d]
-rem -d   Run Debug build (python_d.exe).  Else release build.
-
-setlocal
-set exe=python
-PATH %PATH%;..\..\tcltk\bin
-
-if "%1"=="-d" (set exe=python_d) & shift
-
-set cmd=%exe% ../Lib/idlelib/idle.py %1 %2 %3 %4 %5 %6 %7 %8 %9
-
-echo on
-%cmd%
+@echo off

+rem start idle

+rem Usage:  idle [-d]

+rem -d   Run Debug build (python_d.exe).  Else release build.

+

+setlocal

+set exe=python

+PATH %PATH%;..\..\tcltk\bin

+

+if "%1"=="-d" (set exe=python_d) & shift

+

+set cmd=%exe% ../Lib/idlelib/idle.py %1 %2 %3 %4 %5 %6 %7 %8 %9

+

+echo on

+%cmd%