exception errrors such as when a pyc file is not found
uncompyle6: Hook in --grammar option to showing grammar.
rules. Default now does not show timestamp.
Remove duplicate disassembly printing from scanners and
put common code in caller(s). Show source-code line numbers in disassembly output
and fix alignment of byte offsets.
disas.py: workaround Python 2/3 different layouts before we get to
bytecodes in a code object.