realpath
========
An Erlang library application which returns the real path of a file,
resolving symlinks
Usage
-----
```erlang
> realpath:canonicalise("/usr/local/man/man1/dwm.1").
{ok, "/usr/local/share/man/man1/dwm.1"}
> realpath:canonicalise("/tmp/deliberate-loop").
{error, loop}
> realpath:normalise("/var/lib/../log").
{ok, "/var/log"}
> realpath:normalise("../etc/passwd").
{error, relative_path}
```
Documentation
-------------
Online at [realpath documentation](https://hexdocs.pm/realpath).