Update sanitizer flags
Update sanitizer flags

Because address sanitizer is built into the compiler, additional
directories shouldn't be needed. Linking to libasan should be taken care
of by "-fsanitize=address", and "-lasan" is causing link issue on MacOS.

Also statically link libasan (not tested, my system doesn't have a
static libasan) when STATIC="yes".

draegtun/ren-c,codebybrett/ren-c,kealist/ren-c,giuliolunati/ren-c,rgchris/ren-c,codebybrett/ren-c,giuliolunati/ren-c,hostilefork/rebol,hostilefork/rebol,rgchris/ren-c,rgchris/ren-c,hostilefork/rebol,hostilefork/rebol,codebybrett/ren-c,giuliolunati/ren-c,kealist/ren-c,rgchris/ren-c,draegtun/ren-c,draegtun/ren-c,codebybrett/ren-c,hostilefork/rebol,giuliolunati/ren-c,kealist/ren-c,codebybrett/ren-c,draegtun/ren-c,draegtun/ren-c,rgchris/ren-c,draegtun/ren-c,codebybrett/ren-c,kealist/ren-c,hostilefork/rebol,kealist/ren-c,kealist/ren-c,giuliolunati/ren-c