If you use git, and you get the message "warning: LF will be replaced by CRLF in composer.lock." every time you commit og add files, then you can get rid of it, by using this command:

git config core.autocrlf false

Read more about it here: http://stackoverflow.com/questions/5834014/lf-will-be-replaced-by-crlf-in-git-what-is-that-and-is-it-important