Fix batch script errors running JitOptimizationSensitive tests
Fix batch script errors running JitOptimizationSensitive tests

Simple typo: REN instead of REM, leading to:

"The syntax of the command is incorrect."

mmitche/coreclr,wtgodbe/coreclr,cshung/coreclr,poizan42/coreclr,poizan42/coreclr,cshung/coreclr,cshung/coreclr,wtgodbe/coreclr,wtgodbe/coreclr,mmitche/coreclr,cshung/coreclr,krk/coreclr,poizan42/coreclr,mmitche/coreclr,wtgodbe/coreclr,krk/coreclr,mmitche/coreclr,mmitche/coreclr,krk/coreclr,cshung/coreclr,mmitche/coreclr,krk/coreclr,poizan42/coreclr,krk/coreclr,cshung/coreclr,wtgodbe/coreclr,poizan42/coreclr,krk/coreclr,poizan42/coreclr,wtgodbe/coreclr