Gaahh!!! We've been throough this before
Git does not NEED a name or email address to checkout something. So how are "Big Scary Warnings"(tm) about things that are not required considered anything but user hostile?
Oh, and "email.com" actually belongs to someone so should not be used as an example domain name.
"Big Scary Warning"(tm) follows:
git> git-checkout master
*** Your name cannot be determined from your system services (gecos).
Run
git config --global user.email "[email protected]" git config --global user.name "Your Name"
to set your account's default identity.
Omit --global to set the identity only in this repository.
fatal: empty ident <unknown@localhost> not allowed git>