pwdf

join current path with given path

Example

```shell

pwd /Users/ashigirl96/.ghq/src/github.com/ashigirl96/pwdf pwdf /Users/ashigirl96/.ghq/src/github.com/ashigirl96/pwdf ```

```shell

pwdf ../pwdf/Cargo.lock /Users/ashigirl96/.ghq/src/github.com/ashigirl96/pwdf/Cargo.lock ```