Multiple small improvements
c657f464 and 7c1320bc replace magic constants with defines from libzafl (requires opensrc/libzafl!12)
26281a19 is a small refactoring of the variables used in the do_insert
lambda function to improve readability
b8506f4c is a small addition to zafl.sh that checks whether the source binary actually exists to produce meaningful error messages
cad8fcff adds sanitizer functions to the blacklist
ec5bf18c improves the main function detection in zafl.sh