Inspired by errno's/dbgerr.py's -l/--list, this gives a quick and easy
list of the current tag encodings, which can be very useful:
$ ./scripts/dbgtag.py -l
LFSR_TAG_NULL 0x0000 v--- ---- ---- ----
LFSR_TAG_CONFIG 0x00tt v--- ---- -ttt tttt
LFSR_TAG_MAGIC 0x0003 v--- ---- ---- --11
LFSR_TAG_VERSION 0x0004 v--- ---- ---- -1--
... snip ...
We already need to keep dbgtag.py in-sync or risk a bad debugging
experience, so we might as well let it tell us all the information it
currently knows.
Also yay for self-inspecting code, I don't know if it's bad that I'm
becoming a fan of parsing information out of comments...
Christopher Haster
ae0e3348fe