MTR does not work with Windows ASAN builds

MTR does not work currently with ASAN on following reason

Whenever mtr starts on ASAN build. it passes options, on Windows similar to

ASAN_OPTIONS=suppressions=C:/path/asan.supp:abort_on_error=1:

mtr tries to starts mysqld. and it fails, does not want to start, and ASAN complains about incorrectly formatted ASAN_OPTIONS, which is understandable, because it uses ':' as delimiter, which Windows uses as path delimiter