expand file paths

[mgor]

made a docker image with the required tools, and with some aliases etc. made it possible to run the tools from within a docker container. with the exception that ${HOME} needs to be mounted in the docker container and hence when the commands are executed the full path to the file is needed.

basically changing @% to expand("%:p").

for reference: https://github.com/mgor/docker-phpqa https://hub.docker.com/r/mgor/phpqa/