You'll notice
Useful2 Signal2
Hostnames pulled from git remotes are validated more strictly so a crafted URL can't look like a flag.
What's wrong with this entry?
Anonymous. No account, no email.
What
A hostname parsed out of a git remote URL must now consist only of letters, digits, dots and hyphens and must not start with a hyphen, on top of the existing checks for a dot and an alphabetic top-level domain. This stops a crafted remote URL from producing a host that later looks like a command-line option.
Evidence
/^[A-Za-z0-9.-]+$/
Strings lifted out of the shipped bundle, so the claim above can be checked against them.