tools/tb2err: Formats Lua traceback in errors.err format

Manually opening to the files and line numbers from a Lua traceback is
tedious. This tool converts tracebacks into a format that many compilers
and such tools use, which is also compatible with Vim (and possibly
other editors).

Thus if someone sends you a pastebin link with a traceback, a command
like the following gets you right to the relevant lines:

curl paste.example/abc123.txt | tb2err > errors.err; vim -q

0 files changed, 0 insertions, 0 deletions