Description
When porting launch-script functionality over some of the disabled-by-default options in cassandra-env.ps1 weren't modified. They're decidedly non-Windows:
# Configure the following for JEMallocAllocator and if jemalloc is not available in the system # library path (Example: /usr/local/lib/). Usually "make install" will do the right thing.
Trivial effort - just update those to reflect sane windows defaults/paths/ecosystem. Should have 0 effect on runtime defaults as they're all already Windows-ified.