Warning! Upgrade now! There is a security hole in the git client.
UNTIL YOU UPGRADE: Do not "git clone" or "git pull" from untrusted sources.
AFTER YOU UPGRADE: Do not "git clone" or "git pull" from untrusted sources. THE CODE YOU JUST DOWNLOADED IS UNTRUSTED AND SHOULD NOT BE RUN, YOU FOOL!
But... how else am I supposed to explore new software?