Prints all V functions in .v files under PATH/, that do not yet have
documentation comments.

Usage: v missdoc [options] PATH [PATH]...

Options:
  -h, --help             Show this help text.
  -t, --tags             Also print function tags if any is found.
  -d, --deprecated       Include deprecated functions in output.
  -p, --private          Include private functions in output.
  --js                   Include JavaScript functions in output.
  -n, --no-line-numbers  Exclude line numbers in output.
  -e, --exclude 

  -r, --relative-paths   Use relative paths in output.
  --verify               exit(1) if documentation is missing, 0 otherwise.
  --diff                 exit(1) and show difference between two PATH inputs,
                         return 0 otherwise.
  --version              output version information and exit



PATH can be both files and directories.

The `--verify` flag is useful for use in CI setups for checking if a V project
has all it's functions and methods documented:
```
v missdoc --verify path/to/code
```

The `--diff` flag is useful if your project is not yet fully documented
but you want to ensure that no new functions or methods are introduced
between commits or branches:
```
v missdoc --diff current/code new/code
```

Note: use `v missdoc @vlib`, to find public fns that still lack documentation.