The utils/dev-scripts/at-to-filelist, utils/dev-scripts/split-cmdline and utils/build-parser-lib scripts needed to be reformatted with the black tool to agree with the linter.
Useful to show the control flow graph of a disassembled function.
The control flow graph can the be viewed with the viewcfg utility:
(lldb) disassemble
<copy-paste output to file.s>
$ blockifyasm < file.s | viewcfg