Call validate-lint on changed files
Call validate-lint on changed files

Now that golint is done on all source files, let set up golint to check
only changed files (like validate-vet).

Signed-off-by: Vincent Demeester <87e1f221a672a14a323e57bb65eaea19d3ed3804@sbr.pm>

dweomer/docker-libcompose,imikushin/libcompose,vito-c/libcompose,jainvipin/libcompose,Azure22/libcompose,weitenghuang/libcompose,dweomer/docker-libcompose,jainvipin/libcompose,thaJeztah/libcompose,vito-c/libcompose,docker/libcompose,imikushin/libcompose,vdemeester/libcompose,kunalkushwaha/libcompose,weitenghuang/libcompose,thaJeztah/libcompose,kunalkushwaha/libcompose,vdemeester/libcompose,docker/libcompose,Azure22/libcompose