Plugin could be faster

[vtexier]

Expected behavior

Same speed as if I was running pylint with commited files as arguments.

Current behavior

Very slow, as the plugin rerun the pylint command for every single commited file.

Steps to reproduce

1. Run pylint on a directory and measure time.
2. Commit all the files from the directory, with autohooks-plugin-pylint check and measure time.
3. Compare times of 1. and 2. : 2. is far longer than 1.

Would you consider to add files as arguments to a single run of pylint to speed up the commit time ?